diff --git a/Marlin/src/HAL/HAL_DUE/G2_PWM.h b/Marlin/src/HAL/HAL_DUE/G2_PWM.h
index a3722b603..8086648bc 100644
--- a/Marlin/src/HAL/HAL_DUE/G2_PWM.h
+++ b/Marlin/src/HAL/HAL_DUE/G2_PWM.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * This module is stripped down version of the LPC1768_PWM.h file from
diff --git a/Marlin/src/HAL/HAL_DUE/SanityCheck.h b/Marlin/src/HAL/HAL_DUE/SanityCheck.h
index c9fcf40a5..a8d51edfa 100644
--- a/Marlin/src/HAL/HAL_DUE/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_DUE/SanityCheck.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Test Arduino Due specific configuration values for errors at compile-time.
diff --git a/Marlin/src/HAL/HAL_ESP32/FlushableHardwareSerial.h b/Marlin/src/HAL/HAL_ESP32/FlushableHardwareSerial.h
index e23ace9f2..66bdbd7aa 100644
--- a/Marlin/src/HAL/HAL_ESP32/FlushableHardwareSerial.h
+++ b/Marlin/src/HAL/HAL_ESP32/FlushableHardwareSerial.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifdef ARDUINO_ARCH_ESP32
 
diff --git a/Marlin/src/HAL/HAL_ESP32/SanityCheck.h b/Marlin/src/HAL/HAL_ESP32/SanityCheck.h
index 517cfe6a3..9c62a353e 100644
--- a/Marlin/src/HAL/HAL_ESP32/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_ESP32/SanityCheck.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #if ENABLED(EMERGENCY_PARSER)
   #error "EMERGENCY_PARSER is not yet implemented for ESP32. Disable EMERGENCY_PARSER to continue."
diff --git a/Marlin/src/HAL/HAL_ESP32/servotimers.h b/Marlin/src/HAL/HAL_ESP32/servotimers.h
index 5680d26dd..85f26f401 100644
--- a/Marlin/src/HAL/HAL_ESP32/servotimers.h
+++ b/Marlin/src/HAL/HAL_ESP32/servotimers.h
@@ -19,3 +19,4 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
diff --git a/Marlin/src/HAL/HAL_LINUX/SanityCheck.h b/Marlin/src/HAL/HAL_LINUX/SanityCheck.h
index 36ebf21cd..776fa2f13 100644
--- a/Marlin/src/HAL/HAL_LINUX/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_LINUX/SanityCheck.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Test X86_64-specific configuration values for errors at compile-time.
diff --git a/Marlin/src/HAL/HAL_LPC1768/HAL_Servo_LPC1768.h b/Marlin/src/HAL/HAL_LPC1768/HAL_Servo_LPC1768.h
index c5aa9c2fd..8b511032c 100644
--- a/Marlin/src/HAL/HAL_LPC1768/HAL_Servo_LPC1768.h
+++ b/Marlin/src/HAL/HAL_LPC1768/HAL_Servo_LPC1768.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
diff --git a/Marlin/src/HAL/HAL_LPC1768/SanityCheck.h b/Marlin/src/HAL/HAL_LPC1768/SanityCheck.h
index fb3d5abf5..6223e006d 100644
--- a/Marlin/src/HAL/HAL_LPC1768/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_LPC1768/SanityCheck.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Test LPC176x-specific configuration values for errors at compile-time.
diff --git a/Marlin/src/HAL/HAL_LPC1768/include/SPI.h b/Marlin/src/HAL/HAL_LPC1768/include/SPI.h
index 2741e67df..559759ea0 100644
--- a/Marlin/src/HAL/HAL_LPC1768/include/SPI.h
+++ b/Marlin/src/HAL/HAL_LPC1768/include/SPI.h
@@ -19,7 +19,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-
 #pragma once
 
 #include "../../shared/HAL_SPI.h"
diff --git a/Marlin/src/HAL/HAL_LPC1768/persistent_store_api.h b/Marlin/src/HAL/HAL_LPC1768/persistent_store_api.h
index 730df72d6..cafa53b30 100644
--- a/Marlin/src/HAL/HAL_LPC1768/persistent_store_api.h
+++ b/Marlin/src/HAL/HAL_LPC1768/persistent_store_api.h
@@ -19,6 +19,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
+
 #include "../shared/persistent_store_api.h"
 
 #define FLASH_EEPROM_EMULATION
diff --git a/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_I2C_routines.h b/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_I2C_routines.h
index 606ce67b6..11e05ba0d 100644
--- a/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_I2C_routines.h
+++ b/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_I2C_routines.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 void u8g_i2c_init(uint8_t options);
 uint8_t u8g_i2c_wait(uint8_t mask, uint8_t pos);
diff --git a/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_defines.h b/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_defines.h
index 876f10be3..1153329d8 100644
--- a/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_defines.h
+++ b/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_defines.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * LPC1768 LCD-specific defines
diff --git a/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_delay.h b/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_delay.h
index 4db855746..f37773d21 100644
--- a/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_delay.h
+++ b/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_delay.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * LCD delay routines - used by all the drivers.
diff --git a/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_pin_routines.h b/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_pin_routines.h
index 63b7b403c..569706b48 100644
--- a/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_pin_routines.h
+++ b/Marlin/src/HAL/HAL_LPC1768/u8g/HAL_LCD_pin_routines.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Low level pin manipulation routines - used by all the drivers.
diff --git a/Marlin/src/HAL/HAL_STM32F1/SanityCheck.h b/Marlin/src/HAL/HAL_STM32F1/SanityCheck.h
index f406d1d4f..f356c0da0 100644
--- a/Marlin/src/HAL/HAL_STM32F1/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_STM32F1/SanityCheck.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Test STM32F1-specific configuration values for errors at compile-time.
diff --git a/Marlin/src/HAL/HAL_STM32F4/SanityCheck.h b/Marlin/src/HAL/HAL_STM32F4/SanityCheck.h
index 0ce8b83b8..e9eb8fa82 100644
--- a/Marlin/src/HAL/HAL_STM32F4/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_STM32F4/SanityCheck.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Test STM32F4-specific configuration values for errors at compile-time.
diff --git a/Marlin/src/HAL/HAL_STM32F7/SanityCheck.h b/Marlin/src/HAL/HAL_STM32F7/SanityCheck.h
index 45b46ebcf..e292de4ef 100644
--- a/Marlin/src/HAL/HAL_STM32F7/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_STM32F7/SanityCheck.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Test STM32F7-specific configuration values for errors at compile-time.
diff --git a/Marlin/src/HAL/HAL_TEENSY31_32/HAL_Servo_Teensy.h b/Marlin/src/HAL/HAL_TEENSY31_32/HAL_Servo_Teensy.h
index 40a8181bf..e096dc60c 100644
--- a/Marlin/src/HAL/HAL_TEENSY31_32/HAL_Servo_Teensy.h
+++ b/Marlin/src/HAL/HAL_TEENSY31_32/HAL_Servo_Teensy.h
@@ -19,7 +19,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-
 #pragma once
 
 #include <Servo.h>
diff --git a/Marlin/src/HAL/HAL_TEENSY31_32/HAL_timers_Teensy.h b/Marlin/src/HAL/HAL_TEENSY31_32/HAL_timers_Teensy.h
index c0c320a6f..8c9836d13 100644
--- a/Marlin/src/HAL/HAL_TEENSY31_32/HAL_timers_Teensy.h
+++ b/Marlin/src/HAL/HAL_TEENSY31_32/HAL_timers_Teensy.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Description: HAL for
diff --git a/Marlin/src/HAL/HAL_TEENSY31_32/SanityCheck.h b/Marlin/src/HAL/HAL_TEENSY31_32/SanityCheck.h
index 9bc6217a0..389d27824 100644
--- a/Marlin/src/HAL/HAL_TEENSY31_32/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_TEENSY31_32/SanityCheck.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Test TEENSY35_36 specific configuration values for errors at compile-time.
diff --git a/Marlin/src/HAL/HAL_TEENSY31_32/endstop_interrupts.h b/Marlin/src/HAL/HAL_TEENSY31_32/endstop_interrupts.h
index 71e2eb33d..1af89e0f3 100644
--- a/Marlin/src/HAL/HAL_TEENSY31_32/endstop_interrupts.h
+++ b/Marlin/src/HAL/HAL_TEENSY31_32/endstop_interrupts.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Endstop Interrupts
diff --git a/Marlin/src/HAL/HAL_TEENSY31_32/fastio_Teensy.h b/Marlin/src/HAL/HAL_TEENSY31_32/fastio_Teensy.h
index 2af63de81..7bcd601b5 100644
--- a/Marlin/src/HAL/HAL_TEENSY31_32/fastio_Teensy.h
+++ b/Marlin/src/HAL/HAL_TEENSY31_32/fastio_Teensy.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Fast I/O Routines for Teensy 3.5 and Teensy 3.6
diff --git a/Marlin/src/HAL/HAL_TEENSY31_32/spi_pins.h b/Marlin/src/HAL/HAL_TEENSY31_32/spi_pins.h
index 74d130d7e..8a0ab8f9a 100644
--- a/Marlin/src/HAL/HAL_TEENSY31_32/spi_pins.h
+++ b/Marlin/src/HAL/HAL_TEENSY31_32/spi_pins.h
@@ -19,7 +19,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-
 #pragma once
 
 #define SCK_PIN   13
diff --git a/Marlin/src/HAL/HAL_TEENSY31_32/watchdog_Teensy.h b/Marlin/src/HAL/HAL_TEENSY31_32/watchdog_Teensy.h
index 82a9eee29..ceb041b45 100644
--- a/Marlin/src/HAL/HAL_TEENSY31_32/watchdog_Teensy.h
+++ b/Marlin/src/HAL/HAL_TEENSY31_32/watchdog_Teensy.h
@@ -19,7 +19,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-
 #pragma once
 
 #include "HAL.h"
diff --git a/Marlin/src/HAL/HAL_TEENSY35_36/SanityCheck.h b/Marlin/src/HAL/HAL_TEENSY35_36/SanityCheck.h
index 823fceeb8..6a126b683 100644
--- a/Marlin/src/HAL/HAL_TEENSY35_36/SanityCheck.h
+++ b/Marlin/src/HAL/HAL_TEENSY35_36/SanityCheck.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Test TEENSY35_36 specific configuration values for errors at compile-time.
diff --git a/Marlin/src/HAL/shared/servo.h b/Marlin/src/HAL/shared/servo.h
index 4eace5a07..b6b2d13e9 100644
--- a/Marlin/src/HAL/shared/servo.h
+++ b/Marlin/src/HAL/shared/servo.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
diff --git a/Marlin/src/core/debug_out.h b/Marlin/src/core/debug_out.h
index e3d917440..7eb93a702 100644
--- a/Marlin/src/core/debug_out.h
+++ b/Marlin/src/core/debug_out.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 //
 // Serial aliases for debugging.
diff --git a/Marlin/src/core/minmax.h b/Marlin/src/core/minmax.h
index 3f13767a4..042119a7e 100644
--- a/Marlin/src/core/minmax.h
+++ b/Marlin/src/core/minmax.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #undef MIN
 #undef MAX
diff --git a/Marlin/src/feature/Max7219_Debug_LEDs.h b/Marlin/src/feature/Max7219_Debug_LEDs.h
index e20eb4547..17b2dfb47 100644
--- a/Marlin/src/feature/Max7219_Debug_LEDs.h
+++ b/Marlin/src/feature/Max7219_Debug_LEDs.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * This module is off by default, but can be enabled to facilitate the display of
diff --git a/Marlin/src/feature/prusa_MMU2/mmu2.h b/Marlin/src/feature/prusa_MMU2/mmu2.h
index 592e5c410..0c20be9d8 100644
--- a/Marlin/src/feature/prusa_MMU2/mmu2.h
+++ b/Marlin/src/feature/prusa_MMU2/mmu2.h
@@ -19,7 +19,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-
 #pragma once
 
 #include "../../inc/MarlinConfig.h"
diff --git a/Marlin/src/gcode/gcode.h b/Marlin/src/gcode/gcode.h
index 1f283c645..93b91e3ee 100644
--- a/Marlin/src/gcode/gcode.h
+++ b/Marlin/src/gcode/gcode.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * gcode.h - Temporary container for all gcode handlers
diff --git a/Marlin/src/lcd/dogm/HAL_LCD_com_defines.h b/Marlin/src/lcd/dogm/HAL_LCD_com_defines.h
index e02bbba6f..c9b112ced 100644
--- a/Marlin/src/lcd/dogm/HAL_LCD_com_defines.h
+++ b/Marlin/src/lcd/dogm/HAL_LCD_com_defines.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // Use this file to select the com driver for device drivers that are NOT in the U8G library
 
diff --git a/Marlin/src/lcd/dogm/dogm_Bootscreen.h b/Marlin/src/lcd/dogm/dogm_Bootscreen.h
index af9320606..7f0c17512 100644
--- a/Marlin/src/lcd/dogm/dogm_Bootscreen.h
+++ b/Marlin/src/lcd/dogm/dogm_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Standard Marlin Boot Screen bitmaps
diff --git a/Marlin/src/lcd/dogm/dogm_Statusscreen.h b/Marlin/src/lcd/dogm/dogm_Statusscreen.h
index df5f83e5c..8031db2d7 100644
--- a/Marlin/src/lcd/dogm/dogm_Statusscreen.h
+++ b/Marlin/src/lcd/dogm/dogm_Statusscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Standard Marlin Status Screen bitmaps
diff --git a/Marlin/src/lcd/dogm/fontdata/fontdata_6x9_marlin.h b/Marlin/src/lcd/dogm/fontdata/fontdata_6x9_marlin.h
index ece1bb945..42f160676 100644
--- a/Marlin/src/lcd/dogm/fontdata/fontdata_6x9_marlin.h
+++ b/Marlin/src/lcd/dogm/fontdata/fontdata_6x9_marlin.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
   Fontname: -Misc-Fixed-Medium-R-Normal--9-90-75-75-C-60-ISO10646-1
diff --git a/Marlin/src/lcd/dogm/ultralcd_DOGM.h b/Marlin/src/lcd/dogm/ultralcd_DOGM.h
index 90569f1c6..409b2b306 100644
--- a/Marlin/src/lcd/dogm/ultralcd_DOGM.h
+++ b/Marlin/src/lcd/dogm/ultralcd_DOGM.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * ultralcd_DOGM.h
diff --git a/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.h b/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.h
index 930398923..12f5ef9a8 100644
--- a/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.h
+++ b/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // NOTE - the HAL version of the rrd device uses a generic ST7920 device.  See the
 // file u8g_dev_st7920_128x64_HAL.cpp for the HAL version.
diff --git a/Marlin/src/lcd/extensible_ui/ui_api.h b/Marlin/src/lcd/extensible_ui/ui_api.h
index cb59e9af8..6cffefe51 100644
--- a/Marlin/src/lcd/extensible_ui/ui_api.h
+++ b/Marlin/src/lcd/extensible_ui/ui_api.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /************
  * ui_api.h *
diff --git a/Marlin/src/lcd/thermistornames.h b/Marlin/src/lcd/thermistornames.h
index 41d7b6131..61582ca39 100644
--- a/Marlin/src/lcd/thermistornames.h
+++ b/Marlin/src/lcd/thermistornames.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * thermistornames.h
diff --git a/Marlin/src/libs/vector_3.h b/Marlin/src/libs/vector_3.h
index 687875d39..0a986374d 100644
--- a/Marlin/src/libs/vector_3.h
+++ b/Marlin/src/libs/vector_3.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * vector_3.cpp - Vector library for bed leveling
diff --git a/Marlin/src/module/delta.h b/Marlin/src/module/delta.h
index 879bc2d9b..aa842fb02 100644
--- a/Marlin/src/module/delta.h
+++ b/Marlin/src/module/delta.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * delta.h - Delta-specific functions
diff --git a/Marlin/src/module/motion.h b/Marlin/src/module/motion.h
index 552b7ead3..35819187a 100644
--- a/Marlin/src/module/motion.h
+++ b/Marlin/src/module/motion.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * motion.h
diff --git a/Marlin/src/module/scara.h b/Marlin/src/module/scara.h
index 9b1790bd7..44f07026e 100644
--- a/Marlin/src/module/scara.h
+++ b/Marlin/src/module/scara.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * scara.h - SCARA-specific functions
diff --git a/Marlin/src/module/thermistor/thermistor_1.h b/Marlin/src/module/thermistor/thermistor_1.h
index e0e740afd..f2eb07808 100644
--- a/Marlin/src/module/thermistor/thermistor_1.h
+++ b/Marlin/src/module/thermistor/thermistor_1.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 4092 K, 4.7 kOhm pull-up, bed thermistor
 const short temptable_1[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_10.h b/Marlin/src/module/thermistor/thermistor_10.h
index 66e6ae8cd..0ef9d9d63 100644
--- a/Marlin/src/module/thermistor/thermistor_10.h
+++ b/Marlin/src/module/thermistor/thermistor_10.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 3960 K, 4.7 kOhm pull-up, RS thermistor 198-961
 const short temptable_10[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_1010.h b/Marlin/src/module/thermistor/thermistor_1010.h
index 921ce3b82..ab2b1fb44 100644
--- a/Marlin/src/module/thermistor/thermistor_1010.h
+++ b/Marlin/src/module/thermistor/thermistor_1010.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // Pt1000 with 1k0 pullup
 const short temptable_1010[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_1047.h b/Marlin/src/module/thermistor/thermistor_1047.h
index dbe18e80e..8010d8ebc 100644
--- a/Marlin/src/module/thermistor/thermistor_1047.h
+++ b/Marlin/src/module/thermistor/thermistor_1047.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // Pt1000 with 4k7 pullup
 const short temptable_1047[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_11.h b/Marlin/src/module/thermistor/thermistor_11.h
index 265c2d562..f9a9524a1 100644
--- a/Marlin/src/module/thermistor/thermistor_11.h
+++ b/Marlin/src/module/thermistor/thermistor_11.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 3950 K, 4.7 kOhm pull-up, QU-BD silicone bed QWG-104F-3950 thermistor
 const short temptable_11[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_110.h b/Marlin/src/module/thermistor/thermistor_110.h
index d9b688898..a55a19361 100644
--- a/Marlin/src/module/thermistor/thermistor_110.h
+++ b/Marlin/src/module/thermistor/thermistor_110.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // Pt100 with 1k0 pullup
 const short temptable_110[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_12.h b/Marlin/src/module/thermistor/thermistor_12.h
index c76ceb952..9210bf913 100644
--- a/Marlin/src/module/thermistor/thermistor_12.h
+++ b/Marlin/src/module/thermistor/thermistor_12.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 4700 K, 4.7 kOhm pull-up, (personal calibration for Makibox hot bed)
 const short temptable_12[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_13.h b/Marlin/src/module/thermistor/thermistor_13.h
index fcea0984a..703ec7415 100644
--- a/Marlin/src/module/thermistor/thermistor_13.h
+++ b/Marlin/src/module/thermistor/thermistor_13.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 4100 K, 4.7 kOhm pull-up, Hisens thermistor
 const short temptable_13[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_147.h b/Marlin/src/module/thermistor/thermistor_147.h
index 832a59883..b020103a3 100644
--- a/Marlin/src/module/thermistor/thermistor_147.h
+++ b/Marlin/src/module/thermistor/thermistor_147.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // Pt100 with 4k7 pullup
 const short temptable_147[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_15.h b/Marlin/src/module/thermistor/thermistor_15.h
index bb1305a9e..aab32c05c 100644
--- a/Marlin/src/module/thermistor/thermistor_15.h
+++ b/Marlin/src/module/thermistor/thermistor_15.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
  // 100k bed thermistor in JGAurora A5. Calibrated by Sam Pinches 21st Jan 2018 using cheap k-type thermocouple inserted into heater block, using TM-902C meter.
 const short temptable_15[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_18.h b/Marlin/src/module/thermistor/thermistor_18.h
index 4741a7764..46f1be452 100644
--- a/Marlin/src/module/thermistor/thermistor_18.h
+++ b/Marlin/src/module/thermistor/thermistor_18.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // ATC Semitec 204GT-2 (4.7k pullup) Dagoma.Fr - MKS_Base_DKU001327 - version (measured/tested/approved)
 const short temptable_18[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_2.h b/Marlin/src/module/thermistor/thermistor_2.h
index d2e446158..4a59e8d81 100644
--- a/Marlin/src/module/thermistor/thermistor_2.h
+++ b/Marlin/src/module/thermistor/thermistor_2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 //
 // R25 = 200 kOhm, beta25 = 4338 K, 4.7 kOhm pull-up, ATC Semitec 204GT-2
diff --git a/Marlin/src/module/thermistor/thermistor_20.h b/Marlin/src/module/thermistor/thermistor_20.h
index b81d106dd..fc01858f4 100644
--- a/Marlin/src/module/thermistor/thermistor_20.h
+++ b/Marlin/src/module/thermistor/thermistor_20.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // PT100 with INA826 amp on Ultimaker v2.0 electronics
 // The PT100 in the Ultimaker v2.0 electronics has a high sample value for a high temperature.
diff --git a/Marlin/src/module/thermistor/thermistor_3.h b/Marlin/src/module/thermistor/thermistor_3.h
index 6323b2c8d..bccfcb04c 100644
--- a/Marlin/src/module/thermistor/thermistor_3.h
+++ b/Marlin/src/module/thermistor/thermistor_3.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 4120 K, 4.7 kOhm pull-up, mendel-parts
 const short temptable_3[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_4.h b/Marlin/src/module/thermistor/thermistor_4.h
index 1f03a0c86..46462ba56 100644
--- a/Marlin/src/module/thermistor/thermistor_4.h
+++ b/Marlin/src/module/thermistor/thermistor_4.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 10 kOhm, beta25 = 3950 K, 4.7 kOhm pull-up, Generic 10k thermistor
 const short temptable_4[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_5.h b/Marlin/src/module/thermistor/thermistor_5.h
index f32364b60..0d3905ac1 100644
--- a/Marlin/src/module/thermistor/thermistor_5.h
+++ b/Marlin/src/module/thermistor/thermistor_5.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 4267 K, 4.7 kOhm pull-up
 // 100k ParCan thermistor (104GT-2)
diff --git a/Marlin/src/module/thermistor/thermistor_501.h b/Marlin/src/module/thermistor/thermistor_501.h
index d73d28964..6e551641f 100644
--- a/Marlin/src/module/thermistor/thermistor_501.h
+++ b/Marlin/src/module/thermistor/thermistor_501.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // 100k Zonestar thermistor. Adjusted By Hally
 const short temptable_501[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_51.h b/Marlin/src/module/thermistor/thermistor_51.h
index 3a32ed569..93306d0f8 100644
--- a/Marlin/src/module/thermistor/thermistor_51.h
+++ b/Marlin/src/module/thermistor/thermistor_51.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 4092 K, 1 kOhm pull-up,
 // 100k EPCOS (WITH 1kohm RESISTOR FOR PULLUP, R9 ON SANGUINOLOLU! NOT FOR 4.7kohm PULLUP! THIS IS NOT NORMAL!)
diff --git a/Marlin/src/module/thermistor/thermistor_52.h b/Marlin/src/module/thermistor/thermistor_52.h
index 3e93d2ca6..0e2b028e4 100644
--- a/Marlin/src/module/thermistor/thermistor_52.h
+++ b/Marlin/src/module/thermistor/thermistor_52.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 200 kOhm, beta25 = 4338 K, 1 kOhm pull-up,
 // 200k ATC Semitec 204GT-2 (WITH 1kohm RESISTOR FOR PULLUP, R9 ON SANGUINOLOLU! NOT FOR 4.7kohm PULLUP! THIS IS NOT NORMAL!)
diff --git a/Marlin/src/module/thermistor/thermistor_55.h b/Marlin/src/module/thermistor/thermistor_55.h
index 1ec76c74d..b9a462eab 100644
--- a/Marlin/src/module/thermistor/thermistor_55.h
+++ b/Marlin/src/module/thermistor/thermistor_55.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 4267 K, 1 kOhm pull-up,
 // 100k ATC Semitec 104GT-2 (Used on ParCan) (WITH 1kohm RESISTOR FOR PULLUP, R9 ON SANGUINOLOLU! NOT FOR 4.7kohm PULLUP! THIS IS NOT NORMAL!)
diff --git a/Marlin/src/module/thermistor/thermistor_6.h b/Marlin/src/module/thermistor/thermistor_6.h
index ea9ffd969..a3e6e69f8 100644
--- a/Marlin/src/module/thermistor/thermistor_6.h
+++ b/Marlin/src/module/thermistor/thermistor_6.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 4092 K, 8.2 kOhm pull-up, 100k Epcos (?) thermistor
 const short temptable_6[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_60.h b/Marlin/src/module/thermistor/thermistor_60.h
index c457b03c5..78939bfb4 100644
--- a/Marlin/src/module/thermistor/thermistor_60.h
+++ b/Marlin/src/module/thermistor/thermistor_60.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 3950 K, 4.7 kOhm pull-up,
 // Maker's Tool Works Kapton Bed Thermistor
diff --git a/Marlin/src/module/thermistor/thermistor_61.h b/Marlin/src/module/thermistor/thermistor_61.h
index 8bf299282..361994711 100644
--- a/Marlin/src/module/thermistor/thermistor_61.h
+++ b/Marlin/src/module/thermistor/thermistor_61.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 3950 K, 4.7 kOhm pull-up,
 // Formbot / Vivedino high temp 100k thermistor
diff --git a/Marlin/src/module/thermistor/thermistor_66.h b/Marlin/src/module/thermistor/thermistor_66.h
index 951ec5c5d..c8669c49f 100644
--- a/Marlin/src/module/thermistor/thermistor_66.h
+++ b/Marlin/src/module/thermistor/thermistor_66.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 2.5 MOhm, beta25 = 4500 K, 4.7 kOhm pull-up, DyzeDesign 500 °C Thermistor
 const short temptable_66[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_666.h b/Marlin/src/module/thermistor/thermistor_666.h
index a2fd10090..3b8c68b88 100755
--- a/Marlin/src/module/thermistor/thermistor_666.h
+++ b/Marlin/src/module/thermistor/thermistor_666.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * This file was generated by tltgen on Thu Jul  5 15:46:43 2018.
diff --git a/Marlin/src/module/thermistor/thermistor_67.h b/Marlin/src/module/thermistor/thermistor_67.h
index 6bb675ad0..9e8681112 100644
--- a/Marlin/src/module/thermistor/thermistor_67.h
+++ b/Marlin/src/module/thermistor/thermistor_67.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 500 KOhm, beta25 = 3800 K, 4.7 kOhm pull-up, SliceEngineering 450 °C Thermistor
 const short temptable_67[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_7.h b/Marlin/src/module/thermistor/thermistor_7.h
index dbb8db4bb..609317d49 100644
--- a/Marlin/src/module/thermistor/thermistor_7.h
+++ b/Marlin/src/module/thermistor/thermistor_7.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 3974 K, 4.7 kOhm pull-up, Honeywell 135-104LAG-J01
 const short temptable_7[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_70.h b/Marlin/src/module/thermistor/thermistor_70.h
index b278509e3..f05f066be 100644
--- a/Marlin/src/module/thermistor/thermistor_70.h
+++ b/Marlin/src/module/thermistor/thermistor_70.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // Stock BQ Hephestos 2 100k thermistor.
 // Created on 29/12/2017 with an ambient temperature of 20C.
diff --git a/Marlin/src/module/thermistor/thermistor_71.h b/Marlin/src/module/thermistor/thermistor_71.h
index f4f17e965..0198f326e 100644
--- a/Marlin/src/module/thermistor/thermistor_71.h
+++ b/Marlin/src/module/thermistor/thermistor_71.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 3974 K, 4.7 kOhm pull-up, Honeywell 135-104LAF-J01
 // R0 = 100000 Ohm
diff --git a/Marlin/src/module/thermistor/thermistor_75.h b/Marlin/src/module/thermistor/thermistor_75.h
index b563484b3..a43e1f0b4 100644
--- a/Marlin/src/module/thermistor/thermistor_75.h
+++ b/Marlin/src/module/thermistor/thermistor_75.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * R25 = 100 kOhm, beta25 = 4100 K, 4.7 kOhm pull-up,
diff --git a/Marlin/src/module/thermistor/thermistor_8.h b/Marlin/src/module/thermistor/thermistor_8.h
index 2849020db..8cb9f3aaa 100644
--- a/Marlin/src/module/thermistor/thermistor_8.h
+++ b/Marlin/src/module/thermistor/thermistor_8.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 3950 K, 10 kOhm pull-up, NTCS0603E3104FHT
 const short temptable_8[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_9.h b/Marlin/src/module/thermistor/thermistor_9.h
index d1b8f85c0..44274106b 100644
--- a/Marlin/src/module/thermistor/thermistor_9.h
+++ b/Marlin/src/module/thermistor/thermistor_9.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // R25 = 100 kOhm, beta25 = 3960 K, 4.7 kOhm pull-up, GE Sensing AL03006-58.2K-97-G1
 const short temptable_9[][2] PROGMEM = {
diff --git a/Marlin/src/module/thermistor/thermistor_998.h b/Marlin/src/module/thermistor/thermistor_998.h
index 4ea8a0950..74d0e6e38 100644
--- a/Marlin/src/module/thermistor/thermistor_998.h
+++ b/Marlin/src/module/thermistor/thermistor_998.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // User-defined table 1
 // Dummy Thermistor table.. It will ALWAYS read a fixed value.
diff --git a/Marlin/src/module/thermistor/thermistor_999.h b/Marlin/src/module/thermistor/thermistor_999.h
index afad0c2c3..9d5818bc7 100644
--- a/Marlin/src/module/thermistor/thermistor_999.h
+++ b/Marlin/src/module/thermistor/thermistor_999.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 // User-defined table 2
 // Dummy Thermistor table.. It will ALWAYS read a fixed value.
diff --git a/Marlin/src/pins/pins_3DRAG.h b/Marlin/src/pins/pins_3DRAG.h
index 3653d5c8f..a7e686eef 100644
--- a/Marlin/src/pins/pins_3DRAG.h
+++ b/Marlin/src/pins/pins_3DRAG.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * 3DRAG (and K8200 / K8400) Arduino Mega with RAMPS v1.4 pin assignments
diff --git a/Marlin/src/pins/pins_5DPRINT.h b/Marlin/src/pins/pins_5DPRINT.h
index f847ab8bb..27e26e242 100755
--- a/Marlin/src/pins/pins_5DPRINT.h
+++ b/Marlin/src/pins/pins_5DPRINT.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  *  Rev B  2 JUN 2017
diff --git a/Marlin/src/pins/pins_ADSK.h b/Marlin/src/pins/pins_ADSK.h
index 2eb39abaf..e18a14ded 100644
--- a/Marlin/src/pins/pins_ADSK.h
+++ b/Marlin/src/pins/pins_ADSK.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino DUE Shield Kit (ADSK) pin assignments
diff --git a/Marlin/src/pins/pins_ALLIGATOR_R2.h b/Marlin/src/pins/pins_ALLIGATOR_R2.h
index c2284aaff..538f4b4f5 100644
--- a/Marlin/src/pins/pins_ALLIGATOR_R2.h
+++ b/Marlin/src/pins/pins_ALLIGATOR_R2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Alligator Board R2
diff --git a/Marlin/src/pins/pins_ANET_10.h b/Marlin/src/pins/pins_ANET_10.h
index 8a742217d..b10a7cfa0 100644
--- a/Marlin/src/pins/pins_ANET_10.h
+++ b/Marlin/src/pins/pins_ANET_10.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Anet V1.0 board pin assignments
diff --git a/Marlin/src/pins/pins_ARCHIM1.h b/Marlin/src/pins/pins_ARCHIM1.h
index 7825ff3e8..73f78ba1e 100644
--- a/Marlin/src/pins/pins_ARCHIM1.h
+++ b/Marlin/src/pins/pins_ARCHIM1.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * ARCHIM1 pin assignment
diff --git a/Marlin/src/pins/pins_ARCHIM2.h b/Marlin/src/pins/pins_ARCHIM2.h
index 002b70e07..69ea78715 100644
--- a/Marlin/src/pins/pins_ARCHIM2.h
+++ b/Marlin/src/pins/pins_ARCHIM2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * ARCHIM2 pin assignment
diff --git a/Marlin/src/pins/pins_ARMED.h b/Marlin/src/pins/pins_ARMED.h
index 3dbea1be0..396495ea8 100644
--- a/Marlin/src/pins/pins_ARMED.h
+++ b/Marlin/src/pins/pins_ARMED.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifndef STM32F4
   #error "Oops! Select an STM32F4 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_AZSMZ_MINI.h b/Marlin/src/pins/pins_AZSMZ_MINI.h
index 0f6d0736b..dddec6b0c 100644
--- a/Marlin/src/pins/pins_AZSMZ_MINI.h
+++ b/Marlin/src/pins/pins_AZSMZ_MINI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * AZSMZ MINI pin assignments
diff --git a/Marlin/src/pins/pins_AZTEEG_X1.h b/Marlin/src/pins/pins_AZTEEG_X1.h
index 6ea73ebf9..8c10bc8fb 100644
--- a/Marlin/src/pins/pins_AZTEEG_X1.h
+++ b/Marlin/src/pins/pins_AZTEEG_X1.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Azteeg X1 pin assignments
diff --git a/Marlin/src/pins/pins_AZTEEG_X3.h b/Marlin/src/pins/pins_AZTEEG_X3.h
index 863048b33..4686d9e72 100644
--- a/Marlin/src/pins/pins_AZTEEG_X3.h
+++ b/Marlin/src/pins/pins_AZTEEG_X3.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * AZTEEG_X3 Arduino Mega with RAMPS v1.4 pin assignments
diff --git a/Marlin/src/pins/pins_AZTEEG_X3_PRO.h b/Marlin/src/pins/pins_AZTEEG_X3_PRO.h
index cb2423901..25282f1ee 100644
--- a/Marlin/src/pins/pins_AZTEEG_X3_PRO.h
+++ b/Marlin/src/pins/pins_AZTEEG_X3_PRO.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * AZTEEG_X3_PRO (Arduino Mega) pin assignments
diff --git a/Marlin/src/pins/pins_AZTEEG_X5_GT.h b/Marlin/src/pins/pins_AZTEEG_X5_GT.h
index 081e0e12f..11dd45a6a 100755
--- a/Marlin/src/pins/pins_AZTEEG_X5_GT.h
+++ b/Marlin/src/pins/pins_AZTEEG_X5_GT.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Azteeg X5 GT pin assignments
diff --git a/Marlin/src/pins/pins_AZTEEG_X5_MINI.h b/Marlin/src/pins/pins_AZTEEG_X5_MINI.h
index b94f11a05..41936bd6d 100644
--- a/Marlin/src/pins/pins_AZTEEG_X5_MINI.h
+++ b/Marlin/src/pins/pins_AZTEEG_X5_MINI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Azteeg X5 MINI pin assignments
diff --git a/Marlin/src/pins/pins_AZTEEG_X5_MINI_WIFI.h b/Marlin/src/pins/pins_AZTEEG_X5_MINI_WIFI.h
index a62ef6e89..03005ecb4 100644
--- a/Marlin/src/pins/pins_AZTEEG_X5_MINI_WIFI.h
+++ b/Marlin/src/pins/pins_AZTEEG_X5_MINI_WIFI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Azteeg X5 MINI pin assignments
diff --git a/Marlin/src/pins/pins_BAM_DICE_DUE.h b/Marlin/src/pins/pins_BAM_DICE_DUE.h
index 354d6e15c..7872d66b3 100644
--- a/Marlin/src/pins/pins_BAM_DICE_DUE.h
+++ b/Marlin/src/pins/pins_BAM_DICE_DUE.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * BAM&DICE Due (Arduino Mega) pin assignments
diff --git a/Marlin/src/pins/pins_BEAST.h b/Marlin/src/pins/pins_BEAST.h
index 430b13b42..57efda845 100644
--- a/Marlin/src/pins/pins_BEAST.h
+++ b/Marlin/src/pins/pins_BEAST.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #if !defined(__STM32F1__) && !defined(__STM32F4__)
   #error "Oops! Select an STM32F1/4 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_BIGTREE_SKR_MINI_V1_1.h b/Marlin/src/pins/pins_BIGTREE_SKR_MINI_V1_1.h
index 3f34a28e2..35544950e 100644
--- a/Marlin/src/pins/pins_BIGTREE_SKR_MINI_V1_1.h
+++ b/Marlin/src/pins/pins_BIGTREE_SKR_MINI_V1_1.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifndef TARGET_STM32F1
   #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_BIGTREE_SKR_V1.3.h b/Marlin/src/pins/pins_BIGTREE_SKR_V1.3.h
index 8ec4a5bdb..c6e64f165 100644
--- a/Marlin/src/pins/pins_BIGTREE_SKR_V1.3.h
+++ b/Marlin/src/pins/pins_BIGTREE_SKR_V1.3.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifndef TARGET_LPC1768
   #error "Oops!  Make sure you have the LPC1768 environment selected in your IDE."
diff --git a/Marlin/src/pins/pins_BIQU_B300_V1.0.h b/Marlin/src/pins/pins_BIQU_B300_V1.0.h
index 2df0c207b..a05ebd99f 100644
--- a/Marlin/src/pins/pins_BIQU_B300_V1.0.h
+++ b/Marlin/src/pins/pins_BIQU_B300_V1.0.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * BIQU BQ111-A4
diff --git a/Marlin/src/pins/pins_BIQU_BQ111_A4.h b/Marlin/src/pins/pins_BIQU_BQ111_A4.h
index cb094cb40..8095d86ab 100644
--- a/Marlin/src/pins/pins_BIQU_BQ111_A4.h
+++ b/Marlin/src/pins/pins_BIQU_BQ111_A4.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * BIQU BQ111-A4
diff --git a/Marlin/src/pins/pins_BIQU_KFB_2.h b/Marlin/src/pins/pins_BIQU_KFB_2.h
index 0be628d84..2c370efdf 100644
--- a/Marlin/src/pins/pins_BIQU_KFB_2.h
+++ b/Marlin/src/pins/pins_BIQU_KFB_2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * KFB 2.0 – Arduino Mega2560 with RAMPS v1.4 pin assignments
diff --git a/Marlin/src/pins/pins_BIQU_SKR_V1.1.h b/Marlin/src/pins/pins_BIQU_SKR_V1.1.h
index 2b00a0a05..4dbd0e6c1 100644
--- a/Marlin/src/pins/pins_BIQU_SKR_V1.1.h
+++ b/Marlin/src/pins/pins_BIQU_SKR_V1.1.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifndef TARGET_LPC1768
   #error "Oops!  Make sure you have the LPC1768 environment selected in your IDE."
diff --git a/Marlin/src/pins/pins_BLACK_STM32F407VE.h b/Marlin/src/pins/pins_BLACK_STM32F407VE.h
index bec870384..026648589 100644
--- a/Marlin/src/pins/pins_BLACK_STM32F407VE.h
+++ b/Marlin/src/pins/pins_BLACK_STM32F407VE.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * STM32F407VET6 with RAMPS-like shield
diff --git a/Marlin/src/pins/pins_BQ_ZUM_MEGA_3D.h b/Marlin/src/pins/pins_BQ_ZUM_MEGA_3D.h
index 6012cb2f0..9290e6c3b 100644
--- a/Marlin/src/pins/pins_BQ_ZUM_MEGA_3D.h
+++ b/Marlin/src/pins/pins_BQ_ZUM_MEGA_3D.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * bq ZUM Mega 3D board definition
diff --git a/Marlin/src/pins/pins_BRAINWAVE.h b/Marlin/src/pins/pins_BRAINWAVE.h
index ef4d1c2a4..c254aa89f 100644
--- a/Marlin/src/pins/pins_BRAINWAVE.h
+++ b/Marlin/src/pins/pins_BRAINWAVE.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Brainwave 1.0 pin assignments (AT90USB646)
diff --git a/Marlin/src/pins/pins_BRAINWAVE_PRO.h b/Marlin/src/pins/pins_BRAINWAVE_PRO.h
index 7c9294a0c..920d02f15 100644
--- a/Marlin/src/pins/pins_BRAINWAVE_PRO.h
+++ b/Marlin/src/pins/pins_BRAINWAVE_PRO.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Brainwave Pro pin assignments (AT90USB1286)
diff --git a/Marlin/src/pins/pins_CHEAPTRONIC.h b/Marlin/src/pins/pins_CHEAPTRONIC.h
index 6faa7d2f3..36cfb3143 100644
--- a/Marlin/src/pins/pins_CHEAPTRONIC.h
+++ b/Marlin/src/pins/pins_CHEAPTRONIC.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Cheaptronic v1.0 pin assignments
diff --git a/Marlin/src/pins/pins_CHEAPTRONICv2.h b/Marlin/src/pins/pins_CHEAPTRONICv2.h
index 8d6351e4d..111d76cd2 100644
--- a/Marlin/src/pins/pins_CHEAPTRONICv2.h
+++ b/Marlin/src/pins/pins_CHEAPTRONICv2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Cheaptronic v2.0 pin assignments
diff --git a/Marlin/src/pins/pins_CHITU3D.h b/Marlin/src/pins/pins_CHITU3D.h
index 441c7a4f8..59f6b66bb 100644
--- a/Marlin/src/pins/pins_CHITU3D.h
+++ b/Marlin/src/pins/pins_CHITU3D.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #if !defined(__STM32F1__) && !defined(__STM32F4__)
   #error "Oops! Select an STM32F1/4 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_COHESION3D_MINI.h b/Marlin/src/pins/pins_COHESION3D_MINI.h
index 1dabf5b52..29ad150b2 100644
--- a/Marlin/src/pins/pins_COHESION3D_MINI.h
+++ b/Marlin/src/pins/pins_COHESION3D_MINI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Cohesion3D Mini pin assignments
diff --git a/Marlin/src/pins/pins_COHESION3D_REMIX.h b/Marlin/src/pins/pins_COHESION3D_REMIX.h
index f2271eb4a..5adec936a 100644
--- a/Marlin/src/pins/pins_COHESION3D_REMIX.h
+++ b/Marlin/src/pins/pins_COHESION3D_REMIX.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Cohesion3D ReMix pin assignments
diff --git a/Marlin/src/pins/pins_DUE3DOM.h b/Marlin/src/pins/pins_DUE3DOM.h
index 3665f8509..2eb79c9dc 100644
--- a/Marlin/src/pins/pins_DUE3DOM.h
+++ b/Marlin/src/pins/pins_DUE3DOM.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * DUE3DOM pin assignments
diff --git a/Marlin/src/pins/pins_DUE3DOM_MINI.h b/Marlin/src/pins/pins_DUE3DOM_MINI.h
index 4a002db81..3783b7612 100644
--- a/Marlin/src/pins/pins_DUE3DOM_MINI.h
+++ b/Marlin/src/pins/pins_DUE3DOM_MINI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * DUE3DOM MINI pin assignments
diff --git a/Marlin/src/pins/pins_DUPLICATOR_I3_PLUS.h b/Marlin/src/pins/pins_DUPLICATOR_I3_PLUS.h
index cf9ad259d..94585715e 100644
--- a/Marlin/src/pins/pins_DUPLICATOR_I3_PLUS.h
+++ b/Marlin/src/pins/pins_DUPLICATOR_I3_PLUS.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Wanhao Duplicator i3 Plus pin assignments
diff --git a/Marlin/src/pins/pins_EINSTART-S.h b/Marlin/src/pins/pins_EINSTART-S.h
index 61c269d9f..4493602e2 100755
--- a/Marlin/src/pins/pins_EINSTART-S.h
+++ b/Marlin/src/pins/pins_EINSTART-S.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Einstart-S pin assignments
diff --git a/Marlin/src/pins/pins_EINSY_RAMBO.h b/Marlin/src/pins/pins_EINSY_RAMBO.h
index 668eb9504..c40bc079c 100644
--- a/Marlin/src/pins/pins_EINSY_RAMBO.h
+++ b/Marlin/src/pins/pins_EINSY_RAMBO.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Einsy-Rambo pin assignments
diff --git a/Marlin/src/pins/pins_EINSY_RETRO.h b/Marlin/src/pins/pins_EINSY_RETRO.h
index 42b330c9d..220619147 100644
--- a/Marlin/src/pins/pins_EINSY_RETRO.h
+++ b/Marlin/src/pins/pins_EINSY_RETRO.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Einsy-Retro pin assignments
diff --git a/Marlin/src/pins/pins_ELEFU_3.h b/Marlin/src/pins/pins_ELEFU_3.h
index 184734ab4..ae87e8ce7 100644
--- a/Marlin/src/pins/pins_ELEFU_3.h
+++ b/Marlin/src/pins/pins_ELEFU_3.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Elefu RA Board Pin Assignments
diff --git a/Marlin/src/pins/pins_ESP32.h b/Marlin/src/pins/pins_ESP32.h
index a4c6bf923..35e8e1ee0 100644
--- a/Marlin/src/pins/pins_ESP32.h
+++ b/Marlin/src/pins/pins_ESP32.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Espressif ESP32 (Tensilica Xtensa LX6) pin assignments
diff --git a/Marlin/src/pins/pins_FELIX2.h b/Marlin/src/pins/pins_FELIX2.h
index d8ec91a6d..ec02cc22c 100644
--- a/Marlin/src/pins/pins_FELIX2.h
+++ b/Marlin/src/pins/pins_FELIX2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * FELIXprinters v2.0/3.0 (RAMPS v1.4) pin assignments
diff --git a/Marlin/src/pins/pins_FORMBOT_RAPTOR.h b/Marlin/src/pins/pins_FORMBOT_RAPTOR.h
index c624a8a5d..762feaa6d 100644
--- a/Marlin/src/pins/pins_FORMBOT_RAPTOR.h
+++ b/Marlin/src/pins/pins_FORMBOT_RAPTOR.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Formbot Raptor pin assignments
diff --git a/Marlin/src/pins/pins_FORMBOT_RAPTOR2.h b/Marlin/src/pins/pins_FORMBOT_RAPTOR2.h
index 08281e7e5..e89167e98 100644
--- a/Marlin/src/pins/pins_FORMBOT_RAPTOR2.h
+++ b/Marlin/src/pins/pins_FORMBOT_RAPTOR2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Formbot Raptor 2 pin assignments
diff --git a/Marlin/src/pins/pins_FORMBOT_TREX2PLUS.h b/Marlin/src/pins/pins_FORMBOT_TREX2PLUS.h
index 578147485..f3b12ee1b 100644
--- a/Marlin/src/pins/pins_FORMBOT_TREX2PLUS.h
+++ b/Marlin/src/pins/pins_FORMBOT_TREX2PLUS.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Formbot pin assignments
diff --git a/Marlin/src/pins/pins_FORMBOT_TREX3.h b/Marlin/src/pins/pins_FORMBOT_TREX3.h
index 5beb0db7a..4ca2556d8 100644
--- a/Marlin/src/pins/pins_FORMBOT_TREX3.h
+++ b/Marlin/src/pins/pins_FORMBOT_TREX3.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Formbot pin assignments
diff --git a/Marlin/src/pins/pins_FYSETC_AIO_II.h b/Marlin/src/pins/pins_FYSETC_AIO_II.h
index 4e85b0fca..49879ba50 100644
--- a/Marlin/src/pins/pins_FYSETC_AIO_II.h
+++ b/Marlin/src/pins/pins_FYSETC_AIO_II.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifndef __STM32F1__
   #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_FYSETC_CHEETAH.h b/Marlin/src/pins/pins_FYSETC_CHEETAH.h
index 65459375d..c3be9431a 100644
--- a/Marlin/src/pins/pins_FYSETC_CHEETAH.h
+++ b/Marlin/src/pins/pins_FYSETC_CHEETAH.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifndef __STM32F1__
   #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_FYSETC_F6_13.h b/Marlin/src/pins/pins_FYSETC_F6_13.h
index ba1eb1d04..e41cca85c 100644
--- a/Marlin/src/pins/pins_FYSETC_F6_13.h
+++ b/Marlin/src/pins/pins_FYSETC_F6_13.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 //
 // Fysetc F6 pin assignments
diff --git a/Marlin/src/pins/pins_GEN3_MONOLITHIC.h b/Marlin/src/pins/pins_GEN3_MONOLITHIC.h
index 5c71802ab..e48b340e1 100644
--- a/Marlin/src/pins/pins_GEN3_MONOLITHIC.h
+++ b/Marlin/src/pins/pins_GEN3_MONOLITHIC.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Gen3 Monolithic Electronics pin assignments
diff --git a/Marlin/src/pins/pins_GEN3_PLUS.h b/Marlin/src/pins/pins_GEN3_PLUS.h
index b7b3f519c..9b5f42caa 100644
--- a/Marlin/src/pins/pins_GEN3_PLUS.h
+++ b/Marlin/src/pins/pins_GEN3_PLUS.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Gen3+ pin assignments
diff --git a/Marlin/src/pins/pins_GEN6.h b/Marlin/src/pins/pins_GEN6.h
index aab92086a..42abd0013 100644
--- a/Marlin/src/pins/pins_GEN6.h
+++ b/Marlin/src/pins/pins_GEN6.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Gen6 pin assignments
diff --git a/Marlin/src/pins/pins_GEN6_DELUXE.h b/Marlin/src/pins/pins_GEN6_DELUXE.h
index e419a431b..359f4e64a 100644
--- a/Marlin/src/pins/pins_GEN6_DELUXE.h
+++ b/Marlin/src/pins/pins_GEN6_DELUXE.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Gen6 Deluxe pin assignments
diff --git a/Marlin/src/pins/pins_GEN7_12.h b/Marlin/src/pins/pins_GEN7_12.h
index 22996a748..2b9411feb 100644
--- a/Marlin/src/pins/pins_GEN7_12.h
+++ b/Marlin/src/pins/pins_GEN7_12.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Gen7 v1.1, v1.2, v1.3 pin assignments
diff --git a/Marlin/src/pins/pins_GEN7_13.h b/Marlin/src/pins/pins_GEN7_13.h
index fa9af7eb0..d38025524 100644
--- a/Marlin/src/pins/pins_GEN7_13.h
+++ b/Marlin/src/pins/pins_GEN7_13.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Gen7 v1.3 pin assignments
diff --git a/Marlin/src/pins/pins_GEN7_14.h b/Marlin/src/pins/pins_GEN7_14.h
index 73ebb08a3..6228db7ac 100644
--- a/Marlin/src/pins/pins_GEN7_14.h
+++ b/Marlin/src/pins/pins_GEN7_14.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Gen7 v1.4 pin assignments
diff --git a/Marlin/src/pins/pins_GEN7_CUSTOM.h b/Marlin/src/pins/pins_GEN7_CUSTOM.h
index cca6060b0..04689b2ca 100644
--- a/Marlin/src/pins/pins_GEN7_CUSTOM.h
+++ b/Marlin/src/pins/pins_GEN7_CUSTOM.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Gen7 Alfons3 board pin assignments
diff --git a/Marlin/src/pins/pins_GT2560_REV_A.h b/Marlin/src/pins/pins_GT2560_REV_A.h
index d609163fc..ba4f4830a 100644
--- a/Marlin/src/pins/pins_GT2560_REV_A.h
+++ b/Marlin/src/pins/pins_GT2560_REV_A.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Geeetech GT2560 Revision A board pin assignments, based on the work of
diff --git a/Marlin/src/pins/pins_GT2560_REV_A_PLUS.h b/Marlin/src/pins/pins_GT2560_REV_A_PLUS.h
index 4c9abef60..8becf9bcf 100644
--- a/Marlin/src/pins/pins_GT2560_REV_A_PLUS.h
+++ b/Marlin/src/pins/pins_GT2560_REV_A_PLUS.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Geeetech GT2560 Revision A+ board pin assignments
diff --git a/Marlin/src/pins/pins_GT2560_V3.h b/Marlin/src/pins/pins_GT2560_V3.h
index b5688a2d6..4f0667d0b 100644
--- a/Marlin/src/pins/pins_GT2560_V3.h
+++ b/Marlin/src/pins/pins_GT2560_V3.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * GT2560 V3.0 pin assignment
diff --git a/Marlin/src/pins/pins_GT2560_V3_A20.h b/Marlin/src/pins/pins_GT2560_V3_A20.h
index 8925d1701..5565ac62c 100644
--- a/Marlin/src/pins/pins_GT2560_V3_A20.h
+++ b/Marlin/src/pins/pins_GT2560_V3_A20.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Geeetech A20M pin assignment
diff --git a/Marlin/src/pins/pins_GT2560_V3_MC2.h b/Marlin/src/pins/pins_GT2560_V3_MC2.h
index 7f1eb2e0e..7abee9cd6 100644
--- a/Marlin/src/pins/pins_GT2560_V3_MC2.h
+++ b/Marlin/src/pins/pins_GT2560_V3_MC2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /*****************************************************************
  * GT2560 V3.0 pin assignment (for Mecreator 2)
diff --git a/Marlin/src/pins/pins_GTM32_PRO_VB.h b/Marlin/src/pins/pins_GTM32_PRO_VB.h
index e53304718..87b32bf38 100644
--- a/Marlin/src/pins/pins_GTM32_PRO_VB.h
+++ b/Marlin/src/pins/pins_GTM32_PRO_VB.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * 24 May 2018 - @chepo for STM32F103VET6
diff --git a/Marlin/src/pins/pins_JGAURORA_A5S_A1.h b/Marlin/src/pins/pins_JGAURORA_A5S_A1.h
index 28a78c366..4802bb1c0 100644
--- a/Marlin/src/pins/pins_JGAURORA_A5S_A1.h
+++ b/Marlin/src/pins/pins_JGAURORA_A5S_A1.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
  /**
   * 2017 Victor Perez Marlin for stm32f1 test
diff --git a/Marlin/src/pins/pins_K8200.h b/Marlin/src/pins/pins_K8200.h
index bb1c1cbc0..c134585da 100644
--- a/Marlin/src/pins/pins_K8200.h
+++ b/Marlin/src/pins/pins_K8200.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * K8200 Arduino Mega with RAMPS v1.3 pin assignments
diff --git a/Marlin/src/pins/pins_K8400.h b/Marlin/src/pins/pins_K8400.h
index e9df7815b..c3dd647d6 100644
--- a/Marlin/src/pins/pins_K8400.h
+++ b/Marlin/src/pins/pins_K8400.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Velleman K8400 (Vertex)
diff --git a/Marlin/src/pins/pins_K8800.h b/Marlin/src/pins/pins_K8800.h
index 8695bac9e..98fcde5bc 100644
--- a/Marlin/src/pins/pins_K8800.h
+++ b/Marlin/src/pins/pins_K8800.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Velleman K8800 (Vertex)
diff --git a/Marlin/src/pins/pins_LEAPFROG.h b/Marlin/src/pins/pins_LEAPFROG.h
index 11ad0cf30..8d4f31a70 100644
--- a/Marlin/src/pins/pins_LEAPFROG.h
+++ b/Marlin/src/pins/pins_LEAPFROG.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Leapfrog Driver board pin assignments
diff --git a/Marlin/src/pins/pins_MAKEBOARD_MINI.h b/Marlin/src/pins/pins_MAKEBOARD_MINI.h
index 19e11c056..30807d2a1 100644
--- a/Marlin/src/pins/pins_MAKEBOARD_MINI.h
+++ b/Marlin/src/pins/pins_MAKEBOARD_MINI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #include "pins_RAMPS.h"
 
diff --git a/Marlin/src/pins/pins_MALYAN_M200.h b/Marlin/src/pins/pins_MALYAN_M200.h
index f812f75a2..63d0b8f9a 100644
--- a/Marlin/src/pins/pins_MALYAN_M200.h
+++ b/Marlin/src/pins/pins_MALYAN_M200.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MALYAN M200 pin assignments
diff --git a/Marlin/src/pins/pins_MEGACONTROLLER.h b/Marlin/src/pins/pins_MEGACONTROLLER.h
index 6f71a76d6..14fec34ec 100644
--- a/Marlin/src/pins/pins_MEGACONTROLLER.h
+++ b/Marlin/src/pins/pins_MEGACONTROLLER.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Mega controller pin assignments
diff --git a/Marlin/src/pins/pins_MEGATRONICS.h b/Marlin/src/pins/pins_MEGATRONICS.h
index e585591b5..44a487cbb 100644
--- a/Marlin/src/pins/pins_MEGATRONICS.h
+++ b/Marlin/src/pins/pins_MEGATRONICS.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MegaTronics pin assignments
diff --git a/Marlin/src/pins/pins_MEGATRONICS_2.h b/Marlin/src/pins/pins_MEGATRONICS_2.h
index d4cf8e39f..fa154555f 100644
--- a/Marlin/src/pins/pins_MEGATRONICS_2.h
+++ b/Marlin/src/pins/pins_MEGATRONICS_2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MegaTronics v2.0 pin assignments
diff --git a/Marlin/src/pins/pins_MEGATRONICS_3.h b/Marlin/src/pins/pins_MEGATRONICS_3.h
index f63a6075a..863680637 100644
--- a/Marlin/src/pins/pins_MEGATRONICS_3.h
+++ b/Marlin/src/pins/pins_MEGATRONICS_3.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MegaTronics v3.0 / v3.1 / v3.2 pin assignments
diff --git a/Marlin/src/pins/pins_MELZI.h b/Marlin/src/pins/pins_MELZI.h
index eb52319c8..e4dcc4277 100644
--- a/Marlin/src/pins/pins_MELZI.h
+++ b/Marlin/src/pins/pins_MELZI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Melzi pin assignments
diff --git a/Marlin/src/pins/pins_MELZI_CREALITY.h b/Marlin/src/pins/pins_MELZI_CREALITY.h
index 901efae18..2d08dbc55 100644
--- a/Marlin/src/pins/pins_MELZI_CREALITY.h
+++ b/Marlin/src/pins/pins_MELZI_CREALITY.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Melzi (Creality) pin assignments
diff --git a/Marlin/src/pins/pins_MELZI_MAKR3D.h b/Marlin/src/pins/pins_MELZI_MAKR3D.h
index 9a627a152..a9124245c 100644
--- a/Marlin/src/pins/pins_MELZI_MAKR3D.h
+++ b/Marlin/src/pins/pins_MELZI_MAKR3D.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Melzi with ATmega1284 (MaKr3d version) pin assignments
diff --git a/Marlin/src/pins/pins_MELZI_MALYAN.h b/Marlin/src/pins/pins_MELZI_MALYAN.h
index f5c73f7ef..99671d671 100644
--- a/Marlin/src/pins/pins_MELZI_MALYAN.h
+++ b/Marlin/src/pins/pins_MELZI_MALYAN.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Melzi (Malyan M150) pin assignments
diff --git a/Marlin/src/pins/pins_MELZI_TRONXY.h b/Marlin/src/pins/pins_MELZI_TRONXY.h
index b1422461d..bb8e2e324 100644
--- a/Marlin/src/pins/pins_MELZI_TRONXY.h
+++ b/Marlin/src/pins/pins_MELZI_TRONXY.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Melzi pin assignments
diff --git a/Marlin/src/pins/pins_MIGHTYBOARD_REVE.h b/Marlin/src/pins/pins_MIGHTYBOARD_REVE.h
index 51d1b7655..4cb493525 100644
--- a/Marlin/src/pins/pins_MIGHTYBOARD_REVE.h
+++ b/Marlin/src/pins/pins_MIGHTYBOARD_REVE.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Mightyboard Rev.E pin assignments
diff --git a/Marlin/src/pins/pins_MINIRAMBO.h b/Marlin/src/pins/pins_MINIRAMBO.h
index 3ad580346..f81627b65 100644
--- a/Marlin/src/pins/pins_MINIRAMBO.h
+++ b/Marlin/src/pins/pins_MINIRAMBO.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Mini-RAMBo pin assignments
diff --git a/Marlin/src/pins/pins_MINITRONICS.h b/Marlin/src/pins/pins_MINITRONICS.h
index 265983871..a76682a89 100644
--- a/Marlin/src/pins/pins_MINITRONICS.h
+++ b/Marlin/src/pins/pins_MINITRONICS.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Minitronics v1.0/1.1 pin assignments
diff --git a/Marlin/src/pins/pins_MKS_BASE.h b/Marlin/src/pins/pins_MKS_BASE.h
index 9dac6452d..07519a569 100644
--- a/Marlin/src/pins/pins_MKS_BASE.h
+++ b/Marlin/src/pins/pins_MKS_BASE.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS BASE 1.0 – Arduino Mega2560 with RAMPS v1.4 pin assignments
diff --git a/Marlin/src/pins/pins_MKS_BASE_14.h b/Marlin/src/pins/pins_MKS_BASE_14.h
index fa4405759..7681f6cd9 100644
--- a/Marlin/src/pins/pins_MKS_BASE_14.h
+++ b/Marlin/src/pins/pins_MKS_BASE_14.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS BASE v1.4
diff --git a/Marlin/src/pins/pins_MKS_BASE_15.h b/Marlin/src/pins/pins_MKS_BASE_15.h
index 64da6bb7b..12629706f 100644
--- a/Marlin/src/pins/pins_MKS_BASE_15.h
+++ b/Marlin/src/pins/pins_MKS_BASE_15.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS BASE v1.5 with A4982 stepper drivers and digital micro-stepping
diff --git a/Marlin/src/pins/pins_MKS_BASE_HEROIC.h b/Marlin/src/pins/pins_MKS_BASE_HEROIC.h
index d2b65c255..55448d4c0 100644
--- a/Marlin/src/pins/pins_MKS_BASE_HEROIC.h
+++ b/Marlin/src/pins/pins_MKS_BASE_HEROIC.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS BASE with Heroic HR4982 stepper drivers
diff --git a/Marlin/src/pins/pins_MKS_GEN_13.h b/Marlin/src/pins/pins_MKS_GEN_13.h
index 204048911..3d777d838 100644
--- a/Marlin/src/pins/pins_MKS_GEN_13.h
+++ b/Marlin/src/pins/pins_MKS_GEN_13.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega with RAMPS v1.4 adjusted pin assignments
diff --git a/Marlin/src/pins/pins_MKS_GEN_L.h b/Marlin/src/pins/pins_MKS_GEN_L.h
index a76e2a4a8..7b6ea178c 100644
--- a/Marlin/src/pins/pins_MKS_GEN_L.h
+++ b/Marlin/src/pins/pins_MKS_GEN_L.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS GEN L – Arduino Mega2560 with RAMPS v1.4 pin assignments
diff --git a/Marlin/src/pins/pins_MKS_ROBIN.h b/Marlin/src/pins/pins_MKS_ROBIN.h
index 14f12330d..6dac3f65c 100644
--- a/Marlin/src/pins/pins_MKS_ROBIN.h
+++ b/Marlin/src/pins/pins_MKS_ROBIN.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS Robin (STM32F130ZET6) board pin assignments
diff --git a/Marlin/src/pins/pins_MKS_ROBIN_MINI.h b/Marlin/src/pins/pins_MKS_ROBIN_MINI.h
index ebc062c89..b488955b8 100755
--- a/Marlin/src/pins/pins_MKS_ROBIN_MINI.h
+++ b/Marlin/src/pins/pins_MKS_ROBIN_MINI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS Robin MINI (STM32F130VET6) board pin assignments
diff --git a/Marlin/src/pins/pins_MKS_ROBIN_NANO.h b/Marlin/src/pins/pins_MKS_ROBIN_NANO.h
index 3acb7f35e..d57ac3340 100755
--- a/Marlin/src/pins/pins_MKS_ROBIN_NANO.h
+++ b/Marlin/src/pins/pins_MKS_ROBIN_NANO.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS Robin nano (STM32F130VET6) board pin assignments
diff --git a/Marlin/src/pins/pins_MKS_SBASE.h b/Marlin/src/pins/pins_MKS_SBASE.h
index 1673a1cf8..2d37f7274 100644
--- a/Marlin/src/pins/pins_MKS_SBASE.h
+++ b/Marlin/src/pins/pins_MKS_SBASE.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS SBASE pin assignments
diff --git a/Marlin/src/pins/pins_MKS_SGEN.h b/Marlin/src/pins/pins_MKS_SGEN.h
index b28901a57..921ec60c3 100644
--- a/Marlin/src/pins/pins_MKS_SGEN.h
+++ b/Marlin/src/pins/pins_MKS_SGEN.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS SGen pin assignments
diff --git a/Marlin/src/pins/pins_MKS_SGEN_L.h b/Marlin/src/pins/pins_MKS_SGEN_L.h
index 343bd8492..d0ff839a0 100644
--- a/Marlin/src/pins/pins_MKS_SGEN_L.h
+++ b/Marlin/src/pins/pins_MKS_SGEN_L.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * MKS SGEN-L pin assignments
diff --git a/Marlin/src/pins/pins_MORPHEUS.h b/Marlin/src/pins/pins_MORPHEUS.h
index 295b6a14f..fe9c9dce3 100644
--- a/Marlin/src/pins/pins_MORPHEUS.h
+++ b/Marlin/src/pins/pins_MORPHEUS.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
  /**
   * 2017 Victor Perez Marlin for stm32f1 test
diff --git a/Marlin/src/pins/pins_OMCA.h b/Marlin/src/pins/pins_OMCA.h
index be4f8dfb7..b4b23b790 100644
--- a/Marlin/src/pins/pins_OMCA.h
+++ b/Marlin/src/pins/pins_OMCA.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Open Motion controller with enable based extruders (Final!)
diff --git a/Marlin/src/pins/pins_OMCA_A.h b/Marlin/src/pins/pins_OMCA_A.h
index 9c1579d2d..63eb36262 100644
--- a/Marlin/src/pins/pins_OMCA_A.h
+++ b/Marlin/src/pins/pins_OMCA_A.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Open Motion controller with enable based extruders (Alpha!)
diff --git a/Marlin/src/pins/pins_PRINTRBOARD.h b/Marlin/src/pins/pins_PRINTRBOARD.h
index ce27b3eec..eef617fe8 100644
--- a/Marlin/src/pins/pins_PRINTRBOARD.h
+++ b/Marlin/src/pins/pins_PRINTRBOARD.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  *  Rev B  2 JUN 2017
diff --git a/Marlin/src/pins/pins_PRINTRBOARD_G2.h b/Marlin/src/pins/pins_PRINTRBOARD_G2.h
index 1ad4164b6..b23c1af08 100644
--- a/Marlin/src/pins/pins_PRINTRBOARD_G2.h
+++ b/Marlin/src/pins/pins_PRINTRBOARD_G2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * PRINTRBOARD_G2
diff --git a/Marlin/src/pins/pins_PRINTRBOARD_REVF.h b/Marlin/src/pins/pins_PRINTRBOARD_REVF.h
index a3dde23c0..096283e4c 100644
--- a/Marlin/src/pins/pins_PRINTRBOARD_REVF.h
+++ b/Marlin/src/pins/pins_PRINTRBOARD_REVF.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  *  Rev B  2 JUN 2017
diff --git a/Marlin/src/pins/pins_RADDS.h b/Marlin/src/pins/pins_RADDS.h
index 4b2cda612..66b06c2c4 100644
--- a/Marlin/src/pins/pins_RADDS.h
+++ b/Marlin/src/pins/pins_RADDS.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * RADDS
diff --git a/Marlin/src/pins/pins_RAMBO.h b/Marlin/src/pins/pins_RAMBO.h
index 401fcb345..1eb29a66a 100644
--- a/Marlin/src/pins/pins_RAMBO.h
+++ b/Marlin/src/pins/pins_RAMBO.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * IMPORTANT NOTE:
diff --git a/Marlin/src/pins/pins_RAMPS.h b/Marlin/src/pins/pins_RAMPS.h
index 74aa0af45..3093a803c 100644
--- a/Marlin/src/pins/pins_RAMPS.h
+++ b/Marlin/src/pins/pins_RAMPS.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega with RAMPS v1.4 (or v1.3) pin assignments
diff --git a/Marlin/src/pins/pins_RAMPS4DUE.h b/Marlin/src/pins/pins_RAMPS4DUE.h
index 4406d4d59..a4ed62bb0 100644
--- a/Marlin/src/pins/pins_RAMPS4DUE.h
+++ b/Marlin/src/pins/pins_RAMPS4DUE.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega or Due with RAMPS4DUE pin assignments
diff --git a/Marlin/src/pins/pins_RAMPS_13.h b/Marlin/src/pins/pins_RAMPS_13.h
index 952fbbf5a..70bfd51d5 100644
--- a/Marlin/src/pins/pins_RAMPS_13.h
+++ b/Marlin/src/pins/pins_RAMPS_13.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega with RAMPS v1.3 pin assignments
diff --git a/Marlin/src/pins/pins_RAMPS_CREALITY.h b/Marlin/src/pins/pins_RAMPS_CREALITY.h
index e0d71d380..2e5471a5b 100644
--- a/Marlin/src/pins/pins_RAMPS_CREALITY.h
+++ b/Marlin/src/pins/pins_RAMPS_CREALITY.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #if HOTENDS > 2 || E_STEPPERS > 2
   #error "Creality3D RAMPS supports only 2 hotends / E-steppers. Comment out this line to continue."
diff --git a/Marlin/src/pins/pins_RAMPS_DAGOMA.h b/Marlin/src/pins/pins_RAMPS_DAGOMA.h
index b36a3b499..cacdb8381 100644
--- a/Marlin/src/pins/pins_RAMPS_DAGOMA.h
+++ b/Marlin/src/pins/pins_RAMPS_DAGOMA.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #if HOTENDS > 2 || E_STEPPERS > 2
   #error "Dagoma3D F5 RAMPS supports only 2 hotends / E-steppers. Comment out this line to continue."
diff --git a/Marlin/src/pins/pins_RAMPS_DUO.h b/Marlin/src/pins/pins_RAMPS_DUO.h
index 6e5160742..95a4daa5b 100644
--- a/Marlin/src/pins/pins_RAMPS_DUO.h
+++ b/Marlin/src/pins/pins_RAMPS_DUO.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega or Due with RAMPS Duo pin assignments
diff --git a/Marlin/src/pins/pins_RAMPS_ENDER_4.h b/Marlin/src/pins/pins_RAMPS_ENDER_4.h
index 2d7859ab3..3a452f986 100755
--- a/Marlin/src/pins/pins_RAMPS_ENDER_4.h
+++ b/Marlin/src/pins/pins_RAMPS_ENDER_4.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #if HOTENDS > 1 || E_STEPPERS > 1
   #error "Ender-4 supports only 1 hotend / E-stepper. Comment out this line to continue."
diff --git a/Marlin/src/pins/pins_RAMPS_FD_V1.h b/Marlin/src/pins/pins_RAMPS_FD_V1.h
index 640358218..684489403 100644
--- a/Marlin/src/pins/pins_RAMPS_FD_V1.h
+++ b/Marlin/src/pins/pins_RAMPS_FD_V1.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * RAMPS-FD
diff --git a/Marlin/src/pins/pins_RAMPS_FD_V2.h b/Marlin/src/pins/pins_RAMPS_FD_V2.h
index 5869d9868..d4f25af16 100644
--- a/Marlin/src/pins/pins_RAMPS_FD_V2.h
+++ b/Marlin/src/pins/pins_RAMPS_FD_V2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * RAMPS-FD v2
diff --git a/Marlin/src/pins/pins_RAMPS_LINUX.h b/Marlin/src/pins/pins_RAMPS_LINUX.h
index 731247d27..614890dda 100644
--- a/Marlin/src/pins/pins_RAMPS_LINUX.h
+++ b/Marlin/src/pins/pins_RAMPS_LINUX.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega with RAMPS v1.4 (or v1.3) pin assignments
diff --git a/Marlin/src/pins/pins_RAMPS_OLD.h b/Marlin/src/pins/pins_RAMPS_OLD.h
index 0a56064da..f0deec3b0 100644
--- a/Marlin/src/pins/pins_RAMPS_OLD.h
+++ b/Marlin/src/pins/pins_RAMPS_OLD.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega with RAMPS v1.0, v1.1, v1.2 pin assignments
diff --git a/Marlin/src/pins/pins_RAMPS_PLUS.h b/Marlin/src/pins/pins_RAMPS_PLUS.h
index fb2174199..77b5ee6f5 100644
--- a/Marlin/src/pins/pins_RAMPS_PLUS.h
+++ b/Marlin/src/pins/pins_RAMPS_PLUS.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega with RAMPS v1.4Plus, also known as 3DYMY version, pin assignments
diff --git a/Marlin/src/pins/pins_RAMPS_RE_ARM.h b/Marlin/src/pins/pins_RAMPS_RE_ARM.h
index c94887fde..b6da047e4 100644
--- a/Marlin/src/pins/pins_RAMPS_RE_ARM.h
+++ b/Marlin/src/pins/pins_RAMPS_RE_ARM.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Re-ARM with RAMPS v1.4 pin assignments
diff --git a/Marlin/src/pins/pins_RAMPS_SMART.h b/Marlin/src/pins/pins_RAMPS_SMART.h
index dc9f94927..cd65aef62 100644
--- a/Marlin/src/pins/pins_RAMPS_SMART.h
+++ b/Marlin/src/pins/pins_RAMPS_SMART.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Due with RAMPS-SMART pin assignments
diff --git a/Marlin/src/pins/pins_REMRAM_V1.h b/Marlin/src/pins/pins_REMRAM_V1.h
index a2ce93f11..409d47b2c 100644
--- a/Marlin/src/pins/pins_REMRAM_V1.h
+++ b/Marlin/src/pins/pins_REMRAM_V1.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifndef STM32F7xx
   #error "Oops! Select an STM32F7 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_RIGIDBOARD.h b/Marlin/src/pins/pins_RIGIDBOARD.h
index a89d84ced..4b472b652 100644
--- a/Marlin/src/pins/pins_RIGIDBOARD.h
+++ b/Marlin/src/pins/pins_RIGIDBOARD.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * RIGIDBOARD Arduino Mega with RAMPS v1.4 pin assignments
diff --git a/Marlin/src/pins/pins_RIGIDBOARD_V2.h b/Marlin/src/pins/pins_RIGIDBOARD_V2.h
index f504846bb..419726883 100644
--- a/Marlin/src/pins/pins_RIGIDBOARD_V2.h
+++ b/Marlin/src/pins/pins_RIGIDBOARD_V2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * RIGIDBOARD V2 Arduino Mega with RAMPS v1.4 pin assignments
diff --git a/Marlin/src/pins/pins_RL200.h b/Marlin/src/pins/pins_RL200.h
index 62df0e4ac..af03ee8c4 100644
--- a/Marlin/src/pins/pins_RL200.h
+++ b/Marlin/src/pins/pins_RL200.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Rapide Lite 200 v1 (RUMBA clone) pin assignments. Has slightly different assignment for
diff --git a/Marlin/src/pins/pins_RUMBA.h b/Marlin/src/pins/pins_RUMBA.h
index 05d995529..db3dff3c7 100644
--- a/Marlin/src/pins/pins_RUMBA.h
+++ b/Marlin/src/pins/pins_RUMBA.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * RUMBA pin assignments
diff --git a/Marlin/src/pins/pins_RUMBA32.h b/Marlin/src/pins/pins_RUMBA32.h
index c8c3dd41d..f3fb0a3d4 100644
--- a/Marlin/src/pins/pins_RUMBA32.h
+++ b/Marlin/src/pins/pins_RUMBA32.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifndef STM32F4
   #error "Oops! Select an STM32F4 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_RUMBA_RAISE3D.h b/Marlin/src/pins/pins_RUMBA_RAISE3D.h
index 43336e275..8d5297c1b 100644
--- a/Marlin/src/pins/pins_RUMBA_RAISE3D.h
+++ b/Marlin/src/pins/pins_RUMBA_RAISE3D.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #define DEFAULT_MACHINE_NAME "Raise3D N Series"
 #define BOARD_NAME           "Raise3D Rumba"
diff --git a/Marlin/src/pins/pins_SAINSMART_2IN1.h b/Marlin/src/pins/pins_SAINSMART_2IN1.h
index c77472fea..a3d24017d 100644
--- a/Marlin/src/pins/pins_SAINSMART_2IN1.h
+++ b/Marlin/src/pins/pins_SAINSMART_2IN1.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Sainsmart 2-in-1 pin assignments
diff --git a/Marlin/src/pins/pins_SANGUINOLOLU_11.h b/Marlin/src/pins/pins_SANGUINOLOLU_11.h
index 2b4e0c5ce..f94d7a03e 100644
--- a/Marlin/src/pins/pins_SANGUINOLOLU_11.h
+++ b/Marlin/src/pins/pins_SANGUINOLOLU_11.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Sanguinololu board pin assignments
diff --git a/Marlin/src/pins/pins_SANGUINOLOLU_12.h b/Marlin/src/pins/pins_SANGUINOLOLU_12.h
index 9e7ed254d..3ef9e1c95 100644
--- a/Marlin/src/pins/pins_SANGUINOLOLU_12.h
+++ b/Marlin/src/pins/pins_SANGUINOLOLU_12.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Sanguinololu V1.2 pin assignments
diff --git a/Marlin/src/pins/pins_SAV_MKI.h b/Marlin/src/pins/pins_SAV_MKI.h
index 81523243b..82d763031 100644
--- a/Marlin/src/pins/pins_SAV_MKI.h
+++ b/Marlin/src/pins/pins_SAV_MKI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  *  Rev B  2 JUN 2017
diff --git a/Marlin/src/pins/pins_SCOOVO_X9H.h b/Marlin/src/pins/pins_SCOOVO_X9H.h
index 8aa3721c8..c9affcba6 100644
--- a/Marlin/src/pins/pins_SCOOVO_X9H.h
+++ b/Marlin/src/pins/pins_SCOOVO_X9H.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /************************************************
  * Rambo pin assignments MODIFIED FOR Scoovo X9H
diff --git a/Marlin/src/pins/pins_SELENA_COMPACT.h b/Marlin/src/pins/pins_SELENA_COMPACT.h
index 5f6e53b0f..3baa441d9 100644
--- a/Marlin/src/pins/pins_SELENA_COMPACT.h
+++ b/Marlin/src/pins/pins_SELENA_COMPACT.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Selena Compact pin assignments
diff --git a/Marlin/src/pins/pins_SETHI.h b/Marlin/src/pins/pins_SETHI.h
index d05625525..049526a8f 100644
--- a/Marlin/src/pins/pins_SETHI.h
+++ b/Marlin/src/pins/pins_SETHI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Sethi 3D_1 pin assignments - www.sethi3d.com.br
diff --git a/Marlin/src/pins/pins_SILVER_GATE.h b/Marlin/src/pins/pins_SILVER_GATE.h
index f807b8e4c..2d1bb12a9 100644
--- a/Marlin/src/pins/pins_SILVER_GATE.h
+++ b/Marlin/src/pins/pins_SILVER_GATE.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #if !defined(__AVR_ATmega1281__) && !defined(__AVR_ATmega2561__)
   #error "Oops! Select 'Silvergate' in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_SMOOTHIEBOARD.h b/Marlin/src/pins/pins_SMOOTHIEBOARD.h
index 753bc81a5..ace87a8ca 100644
--- a/Marlin/src/pins/pins_SMOOTHIEBOARD.h
+++ b/Marlin/src/pins/pins_SMOOTHIEBOARD.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Smoothieboard pin assignments
diff --git a/Marlin/src/pins/pins_STB_11.h b/Marlin/src/pins/pins_STB_11.h
index 0b3e3d39a..9f14f1b42 100644
--- a/Marlin/src/pins/pins_STB_11.h
+++ b/Marlin/src/pins/pins_STB_11.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * STB V1.1 pin assignments
diff --git a/Marlin/src/pins/pins_STEVAL.h b/Marlin/src/pins/pins_STEVAL.h
index b4680a874..d174b339c 100644
--- a/Marlin/src/pins/pins_STEVAL.h
+++ b/Marlin/src/pins/pins_STEVAL.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifndef STM32F4
   #error "Oops! Select an STM32F4 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_STM32F1R.h b/Marlin/src/pins/pins_STM32F1R.h
index 682cf8159..91de11a95 100644
--- a/Marlin/src/pins/pins_STM32F1R.h
+++ b/Marlin/src/pins/pins_STM32F1R.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #ifndef __STM32F1__
   #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_STM32F4.h b/Marlin/src/pins/pins_STM32F4.h
index c797f3fc2..7ce1d2d6c 100644
--- a/Marlin/src/pins/pins_STM32F4.h
+++ b/Marlin/src/pins/pins_STM32F4.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #if !defined(STM32F4) && !defined(STM32F4xx)
   #error "Oops! Select an STM32F4 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_STM3R_MINI.h b/Marlin/src/pins/pins_STM3R_MINI.h
index 354c41ff3..acf2dfaf2 100644
--- a/Marlin/src/pins/pins_STM3R_MINI.h
+++ b/Marlin/src/pins/pins_STM3R_MINI.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #if !defined(__STM32F1__) && !defined(__STM32F4__)
   #error "Oops! Select an STM32F1/4 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_TEENSY2.h b/Marlin/src/pins/pins_TEENSY2.h
index e2dbf5bdc..572cb0707 100644
--- a/Marlin/src/pins/pins_TEENSY2.h
+++ b/Marlin/src/pins/pins_TEENSY2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  *  Rev B  2 JUN 2017
diff --git a/Marlin/src/pins/pins_TEENSY31_32.h b/Marlin/src/pins/pins_TEENSY31_32.h
index 15830672b..703652576 100644
--- a/Marlin/src/pins/pins_TEENSY31_32.h
+++ b/Marlin/src/pins/pins_TEENSY31_32.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /****************************************************************************************
 * Teensy 3.1 (MK20DX256) and Teensy 3.2 (MK20DX256) Breadboard pin assignments
diff --git a/Marlin/src/pins/pins_TEENSY35_36.h b/Marlin/src/pins/pins_TEENSY35_36.h
index 4a325f7ca..922eeb9fa 100644
--- a/Marlin/src/pins/pins_TEENSY35_36.h
+++ b/Marlin/src/pins/pins_TEENSY35_36.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /****************************************************************************************
 * Teensy 3.5 (MK64FX512) and Teensy 3.6 (MK66FX1M0) Breadboard pin assignments
diff --git a/Marlin/src/pins/pins_TH3D_EZBOARD.h b/Marlin/src/pins/pins_TH3D_EZBOARD.h
index f234e1bd2..509fdd3ae 100755
--- a/Marlin/src/pins/pins_TH3D_EZBOARD.h
+++ b/Marlin/src/pins/pins_TH3D_EZBOARD.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * TH3D EZBoard pin assignments
diff --git a/Marlin/src/pins/pins_THE_BORG.h b/Marlin/src/pins/pins_THE_BORG.h
index 05e3085b7..141320f88 100644
--- a/Marlin/src/pins/pins_THE_BORG.h
+++ b/Marlin/src/pins/pins_THE_BORG.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 #if !defined(STM32F7)
   #error "Oops! Select an STM32F7 board in 'Tools > Board.'"
diff --git a/Marlin/src/pins/pins_TRIGORILLA_13.h b/Marlin/src/pins/pins_TRIGORILLA_13.h
index 677ad2f14..77e0bdf04 100644
--- a/Marlin/src/pins/pins_TRIGORILLA_13.h
+++ b/Marlin/src/pins/pins_TRIGORILLA_13.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega with RAMPS v1.3 for Anycubic
diff --git a/Marlin/src/pins/pins_TRIGORILLA_14.h b/Marlin/src/pins/pins_TRIGORILLA_14.h
index 2ac24699c..c5c3ac0ac 100644
--- a/Marlin/src/pins/pins_TRIGORILLA_14.h
+++ b/Marlin/src/pins/pins_TRIGORILLA_14.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega with RAMPS v1.4 for Anycubic
diff --git a/Marlin/src/pins/pins_TRONXY_V3_1_0.h b/Marlin/src/pins/pins_TRONXY_V3_1_0.h
index 2dde81259..aaf276da7 100644
--- a/Marlin/src/pins/pins_TRONXY_V3_1_0.h
+++ b/Marlin/src/pins/pins_TRONXY_V3_1_0.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Arduino Mega for Tronxy X5S-2E, etc.
diff --git a/Marlin/src/pins/pins_ULTIMAIN_2.h b/Marlin/src/pins/pins_ULTIMAIN_2.h
index 8ea062601..f61f16c2f 100644
--- a/Marlin/src/pins/pins_ULTIMAIN_2.h
+++ b/Marlin/src/pins/pins_ULTIMAIN_2.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Ultiboard v2.0 pin assignments
diff --git a/Marlin/src/pins/pins_ULTIMAKER.h b/Marlin/src/pins/pins_ULTIMAKER.h
index 50436e968..d89505898 100644
--- a/Marlin/src/pins/pins_ULTIMAKER.h
+++ b/Marlin/src/pins/pins_ULTIMAKER.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Ultimaker pin assignments
diff --git a/Marlin/src/pins/pins_ULTIMAKER_OLD.h b/Marlin/src/pins/pins_ULTIMAKER_OLD.h
index e5f182f9a..f0c048f5a 100644
--- a/Marlin/src/pins/pins_ULTIMAKER_OLD.h
+++ b/Marlin/src/pins/pins_ULTIMAKER_OLD.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Ultimaker pin assignments (Old electronics)
diff --git a/Marlin/src/pins/pins_ULTRATRONICS_PRO.h b/Marlin/src/pins/pins_ULTRATRONICS_PRO.h
index 56e95ae57..b77469b0d 100644
--- a/Marlin/src/pins/pins_ULTRATRONICS_PRO.h
+++ b/Marlin/src/pins/pins_ULTRATRONICS_PRO.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * ReprapWorld ULTRATRONICS v1.0
diff --git a/Marlin/src/pins/pins_VORON.h b/Marlin/src/pins/pins_VORON.h
index 8d3df6819..13c93e187 100644
--- a/Marlin/src/pins/pins_VORON.h
+++ b/Marlin/src/pins/pins_VORON.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * VORON Design v2 pin assignments
diff --git a/Marlin/src/pins/pins_ZRIB_V20.h b/Marlin/src/pins/pins_ZRIB_V20.h
index af6e6cade..bf85bfa12 100644
--- a/Marlin/src/pins/pins_ZRIB_V20.h
+++ b/Marlin/src/pins/pins_ZRIB_V20.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * ZRIB V2.0 & V3.0 pin assignments
diff --git a/Marlin/src/pins/pins_Z_BOLT_X_SERIES.h b/Marlin/src/pins/pins_Z_BOLT_X_SERIES.h
index 3868bb8bb..89f8df4b4 100644
--- a/Marlin/src/pins/pins_Z_BOLT_X_SERIES.h
+++ b/Marlin/src/pins/pins_Z_BOLT_X_SERIES.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  *  Z-Bolt X Series board – based on Arduino Mega2560
diff --git a/config/examples/Anet/E16/_Statusscreen.h b/config/examples/Anet/E16/_Statusscreen.h
index 874e198f5..7a1c4e869 100644
--- a/config/examples/Anet/E16/_Statusscreen.h
+++ b/config/examples/Anet/E16/_Statusscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Status Screen bitmap
diff --git a/config/examples/AnimationExample/_Bootscreen.h b/config/examples/AnimationExample/_Bootscreen.h
index 98e9d1e43..2c1d31e44 100644
--- a/config/examples/AnimationExample/_Bootscreen.h
+++ b/config/examples/AnimationExample/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Animated boot screen example
diff --git a/config/examples/BQ/Hephestos_2/_Bootscreen.h b/config/examples/BQ/Hephestos_2/_Bootscreen.h
index 909f494db..8d593ccde 100644
--- a/config/examples/BQ/Hephestos_2/_Bootscreen.h
+++ b/config/examples/BQ/Hephestos_2/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap
diff --git a/config/examples/Cartesio/_Bootscreen.h b/config/examples/Cartesio/_Bootscreen.h
index bacae621f..e81968dbf 100644
--- a/config/examples/Cartesio/_Bootscreen.h
+++ b/config/examples/Cartesio/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap
diff --git a/config/examples/Creality/CR-10/_Bootscreen.h b/config/examples/Creality/CR-10/_Bootscreen.h
index 04c731790..2008f5a30 100644
--- a/config/examples/Creality/CR-10/_Bootscreen.h
+++ b/config/examples/Creality/CR-10/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap
diff --git a/config/examples/Creality/CR-10/_Statusscreen.h b/config/examples/Creality/CR-10/_Statusscreen.h
index 93662fb84..88c7d127b 100644
--- a/config/examples/Creality/CR-10/_Statusscreen.h
+++ b/config/examples/Creality/CR-10/_Statusscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Status Screen bitmap
diff --git a/config/examples/Creality/CR-10S/_Bootscreen.h b/config/examples/Creality/CR-10S/_Bootscreen.h
index 04c731790..2008f5a30 100644
--- a/config/examples/Creality/CR-10S/_Bootscreen.h
+++ b/config/examples/Creality/CR-10S/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap
diff --git a/config/examples/Creality/CR-10S/_Statusscreen.h b/config/examples/Creality/CR-10S/_Statusscreen.h
index cf6b962db..a26739681 100644
--- a/config/examples/Creality/CR-10S/_Statusscreen.h
+++ b/config/examples/Creality/CR-10S/_Statusscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Status Screen bitmap
diff --git a/config/examples/Creality/CR-10_5S/_Bootscreen.h b/config/examples/Creality/CR-10_5S/_Bootscreen.h
index 04c731790..2008f5a30 100644
--- a/config/examples/Creality/CR-10_5S/_Bootscreen.h
+++ b/config/examples/Creality/CR-10_5S/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap
diff --git a/config/examples/Creality/CR-10mini/_Bootscreen.h b/config/examples/Creality/CR-10mini/_Bootscreen.h
index 04c731790..2008f5a30 100644
--- a/config/examples/Creality/CR-10mini/_Bootscreen.h
+++ b/config/examples/Creality/CR-10mini/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap
diff --git a/config/examples/Creality/CR-10mini/_Statusscreen.h b/config/examples/Creality/CR-10mini/_Statusscreen.h
index a95a0c48d..a00210327 100644
--- a/config/examples/Creality/CR-10mini/_Statusscreen.h
+++ b/config/examples/Creality/CR-10mini/_Statusscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Status Screen bitmap
diff --git a/config/examples/Creality/Ender-2/_Bootscreen.h b/config/examples/Creality/Ender-2/_Bootscreen.h
index 52119ce6b..e1402b2bb 100644
--- a/config/examples/Creality/Ender-2/_Bootscreen.h
+++ b/config/examples/Creality/Ender-2/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap
diff --git a/config/examples/Creality/Ender-2/_Statusscreen.h b/config/examples/Creality/Ender-2/_Statusscreen.h
index d792b36a9..7a412ad7f 100644
--- a/config/examples/Creality/Ender-2/_Statusscreen.h
+++ b/config/examples/Creality/Ender-2/_Statusscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Status Screen bitmap
diff --git a/config/examples/Creality/Ender-3/_Bootscreen.h b/config/examples/Creality/Ender-3/_Bootscreen.h
index 52119ce6b..e1402b2bb 100644
--- a/config/examples/Creality/Ender-3/_Bootscreen.h
+++ b/config/examples/Creality/Ender-3/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap
diff --git a/config/examples/Creality/Ender-3/_Statusscreen.h b/config/examples/Creality/Ender-3/_Statusscreen.h
index 4600d4cc7..bf3934729 100644
--- a/config/examples/Creality/Ender-3/_Statusscreen.h
+++ b/config/examples/Creality/Ender-3/_Statusscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Status Screen bitmap
diff --git a/config/examples/EVNOVO (Artillery)/Sidewinder X1/_Bootscreen.h b/config/examples/EVNOVO (Artillery)/Sidewinder X1/_Bootscreen.h
index b5df34318..e29d4c77b 100755
--- a/config/examples/EVNOVO (Artillery)/Sidewinder X1/_Bootscreen.h	
+++ b/config/examples/EVNOVO (Artillery)/Sidewinder X1/_Bootscreen.h	
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Made with Marlin Bitmap Converter
diff --git a/config/examples/Formbot/Raptor/_Bootscreen.h b/config/examples/Formbot/Raptor/_Bootscreen.h
index 2a7081ac2..a7805bb4f 100644
--- a/config/examples/Formbot/Raptor/_Bootscreen.h
+++ b/config/examples/Formbot/Raptor/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Bitmap for splashscreen
diff --git a/config/examples/Formbot/Raptor/_Statusscreen.h b/config/examples/Formbot/Raptor/_Statusscreen.h
index 68bd78041..304d5a0b7 100644
--- a/config/examples/Formbot/Raptor/_Statusscreen.h
+++ b/config/examples/Formbot/Raptor/_Statusscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Status Screen bitmap
diff --git a/config/examples/Formbot/T_Rex_2+/_Bootscreen.h b/config/examples/Formbot/T_Rex_2+/_Bootscreen.h
index 5fa445a86..c3195d31f 100644
--- a/config/examples/Formbot/T_Rex_2+/_Bootscreen.h
+++ b/config/examples/Formbot/T_Rex_2+/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Bitmap for splashscreen
diff --git a/config/examples/Formbot/T_Rex_2+/_Statusscreen.h b/config/examples/Formbot/T_Rex_2+/_Statusscreen.h
index b649dc0ff..db4487db1 100644
--- a/config/examples/Formbot/T_Rex_2+/_Statusscreen.h
+++ b/config/examples/Formbot/T_Rex_2+/_Statusscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Status Screen bitmap
diff --git a/config/examples/Formbot/T_Rex_3/_Bootscreen.h b/config/examples/Formbot/T_Rex_3/_Bootscreen.h
index ff155618d..d3f9073a0 100644
--- a/config/examples/Formbot/T_Rex_3/_Bootscreen.h
+++ b/config/examples/Formbot/T_Rex_3/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Bitmap for splashscreen
diff --git a/config/examples/Formbot/T_Rex_3/_Statusscreen.h b/config/examples/Formbot/T_Rex_3/_Statusscreen.h
index b649dc0ff..db4487db1 100644
--- a/config/examples/Formbot/T_Rex_3/_Statusscreen.h
+++ b/config/examples/Formbot/T_Rex_3/_Statusscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Status Screen bitmap
diff --git a/config/examples/MakerParts/_Bootscreen.h b/config/examples/MakerParts/_Bootscreen.h
index c3beec641..6b6685538 100644
--- a/config/examples/MakerParts/_Bootscreen.h
+++ b/config/examples/MakerParts/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap
diff --git a/config/examples/Malyan/M150/_Bootscreen.h b/config/examples/Malyan/M150/_Bootscreen.h
index 6e931972d..4c7da4cc2 100644
--- a/config/examples/Malyan/M150/_Bootscreen.h
+++ b/config/examples/Malyan/M150/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap
diff --git a/config/examples/Tevo/Tarantula Pro/_Bootscreen.h b/config/examples/Tevo/Tarantula Pro/_Bootscreen.h
index 9ce60d747..b5b8dcb13 100644
--- a/config/examples/Tevo/Tarantula Pro/_Bootscreen.h	
+++ b/config/examples/Tevo/Tarantula Pro/_Bootscreen.h	
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Made with Marlin Bitmap Converter
diff --git a/config/examples/VORONDesign/_Bootscreen.h b/config/examples/VORONDesign/_Bootscreen.h
index b95ed07a8..84a214b50 100644
--- a/config/examples/VORONDesign/_Bootscreen.h
+++ b/config/examples/VORONDesign/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Made with Marlin Bitmap Converter
diff --git a/config/examples/gCreate/gMax1.5+/_Bootscreen.h b/config/examples/gCreate/gMax1.5+/_Bootscreen.h
index d53ebfc10..19402c494 100644
--- a/config/examples/gCreate/gMax1.5+/_Bootscreen.h
+++ b/config/examples/gCreate/gMax1.5+/_Bootscreen.h
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * Custom Boot Screen bitmap