diff --git a/boards/boards_legacy/arm/nucleo_h7a3zi_q/Kconfig.board b/boards/boards_legacy/arm/nucleo_h7a3zi_q/Kconfig.board
deleted file mode 100644
index 3d8317ac286..00000000000
--- a/boards/boards_legacy/arm/nucleo_h7a3zi_q/Kconfig.board
+++ /dev/null
@@ -1,8 +0,0 @@
-# STM32H7A3ZI-Q Nucleo board configuration
-
-# Copyright (c) 2021 Electrolance Solutions
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD_NUCLEO_H7A3ZI_Q
-	bool "Nucleo H75A3ZI-Q Development Board"
-	depends on SOC_STM32H7A3XXQ
diff --git a/boards/boards_legacy/arm/nucleo_h7a3zi_q/Kconfig.defconfig b/boards/st/nucleo_h7a3zi_q/Kconfig.defconfig
similarity index 85%
rename from boards/boards_legacy/arm/nucleo_h7a3zi_q/Kconfig.defconfig
rename to boards/st/nucleo_h7a3zi_q/Kconfig.defconfig
index ec43ace7dcb..e8fd3484ea7 100644
--- a/boards/boards_legacy/arm/nucleo_h7a3zi_q/Kconfig.defconfig
+++ b/boards/st/nucleo_h7a3zi_q/Kconfig.defconfig
@@ -5,9 +5,6 @@
 
 if BOARD_NUCLEO_H7A3ZI_Q
 
-config BOARD
-	default "nucleo_h7a3zi_q"
-
 config USB_DC_HAS_HS_SUPPORT
 	default y
 	depends on USB_DC_STM32
diff --git a/boards/st/nucleo_h7a3zi_q/Kconfig.nucleo_h7a3zi_q b/boards/st/nucleo_h7a3zi_q/Kconfig.nucleo_h7a3zi_q
new file mode 100644
index 00000000000..7a00b2bd8fe
--- /dev/null
+++ b/boards/st/nucleo_h7a3zi_q/Kconfig.nucleo_h7a3zi_q
@@ -0,0 +1,5 @@
+# Copyright (c) 2021 Electrolance Solutions
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_NUCLEO_H7A3ZI_Q
+	select SOC_STM32H7A3XXQ
diff --git a/boards/boards_legacy/arm/nucleo_h7a3zi_q/arduino_r3_connector.dtsi b/boards/st/nucleo_h7a3zi_q/arduino_r3_connector.dtsi
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_h7a3zi_q/arduino_r3_connector.dtsi
rename to boards/st/nucleo_h7a3zi_q/arduino_r3_connector.dtsi
diff --git a/boards/boards_legacy/arm/nucleo_h7a3zi_q/board.cmake b/boards/st/nucleo_h7a3zi_q/board.cmake
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_h7a3zi_q/board.cmake
rename to boards/st/nucleo_h7a3zi_q/board.cmake
diff --git a/boards/st/nucleo_h7a3zi_q/board.yml b/boards/st/nucleo_h7a3zi_q/board.yml
new file mode 100644
index 00000000000..0c64ac88228
--- /dev/null
+++ b/boards/st/nucleo_h7a3zi_q/board.yml
@@ -0,0 +1,5 @@
+board:
+  name: nucleo_h7a3zi_q
+  vendor: st
+  socs:
+    - name: stm32h7a3xx
diff --git a/boards/boards_legacy/arm/nucleo_h7a3zi_q/doc/img/nucleo_h7a3zi_q.jpg b/boards/st/nucleo_h7a3zi_q/doc/img/nucleo_h7a3zi_q.jpg
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_h7a3zi_q/doc/img/nucleo_h7a3zi_q.jpg
rename to boards/st/nucleo_h7a3zi_q/doc/img/nucleo_h7a3zi_q.jpg
diff --git a/boards/boards_legacy/arm/nucleo_h7a3zi_q/doc/index.rst b/boards/st/nucleo_h7a3zi_q/doc/index.rst
similarity index 98%
rename from boards/boards_legacy/arm/nucleo_h7a3zi_q/doc/index.rst
rename to boards/st/nucleo_h7a3zi_q/doc/index.rst
index 1144f13e731..484c7e82196 100644
--- a/boards/boards_legacy/arm/nucleo_h7a3zi_q/doc/index.rst
+++ b/boards/st/nucleo_h7a3zi_q/doc/index.rst
@@ -115,7 +115,7 @@ features:
 Other hardware features are not yet supported on this Zephyr port.
 
 The default configuration can be found in the defconfig file:
-``boards/arm/nucleo_h7a3zi_q/nucleo_h7a3zi_q_defconfig``
+:zephyr_file:`boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q_defconfig`
 
 For more details please refer to `STM32 Nucleo-144 board User Manual`_.
 
diff --git a/boards/boards_legacy/arm/nucleo_h7a3zi_q/nucleo_h7a3zi_q.dts b/boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q.dts
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_h7a3zi_q/nucleo_h7a3zi_q.dts
rename to boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q.dts
diff --git a/boards/boards_legacy/arm/nucleo_h7a3zi_q/nucleo_h7a3zi_q.yaml b/boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q.yaml
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_h7a3zi_q/nucleo_h7a3zi_q.yaml
rename to boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q.yaml
diff --git a/boards/boards_legacy/arm/nucleo_h7a3zi_q/nucleo_h7a3zi_q_defconfig b/boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q_defconfig
similarity index 87%
rename from boards/boards_legacy/arm/nucleo_h7a3zi_q/nucleo_h7a3zi_q_defconfig
rename to boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q_defconfig
index 86ed02f8045..5490e9f1fc7 100644
--- a/boards/boards_legacy/arm/nucleo_h7a3zi_q/nucleo_h7a3zi_q_defconfig
+++ b/boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q_defconfig
@@ -1,9 +1,6 @@
 # Copyright (c) 2021 Electrolance Solutions
 # SPDX-License-Identifier: Apache-2.0
 
-CONFIG_SOC_SERIES_STM32H7X=y
-CONFIG_SOC_STM32H7A3XXQ=y
-
 # Enable MPU
 CONFIG_ARM_MPU=y
 
diff --git a/boards/boards_legacy/arm/nucleo_h7a3zi_q/support/openocd.cfg b/boards/st/nucleo_h7a3zi_q/support/openocd.cfg
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_h7a3zi_q/support/openocd.cfg
rename to boards/st/nucleo_h7a3zi_q/support/openocd.cfg