diff --git a/boards/boards_legacy/arm/nucleo_f303re/Kconfig.board b/boards/boards_legacy/arm/nucleo_f303re/Kconfig.board
deleted file mode 100644
index 0b9bc11bf96..00000000000
--- a/boards/boards_legacy/arm/nucleo_f303re/Kconfig.board
+++ /dev/null
@@ -1,8 +0,0 @@
-# NUCLEO-64 F303RE board configuration
-
-# Copyright (c) 2020 Paul M. Bendixen
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD_NUCLEO_F303RE
-	bool "NUCLEO-64 F303RE Development Board"
-	depends on SOC_STM32F303XE
diff --git a/boards/boards_legacy/arm/nucleo_f303re/Kconfig.defconfig b/boards/boards_legacy/arm/nucleo_f303re/Kconfig.defconfig
deleted file mode 100644
index 97aa8100d72..00000000000
--- a/boards/boards_legacy/arm/nucleo_f303re/Kconfig.defconfig
+++ /dev/null
@@ -1,11 +0,0 @@
-# NUCLEO-64 F302R8 board configuration
-
-# Copyright (c) 2020 Paul M. Bendixen
-# SPDX-License-Identifier: Apache-2.0
-
-if BOARD_NUCLEO_F303RE
-
-config BOARD
-	default "nucleo_f303re"
-
-endif # BOARD_NUCLEO_F303RE
diff --git a/boards/st/nucleo_f303re/Kconfig.nucleo_f303re b/boards/st/nucleo_f303re/Kconfig.nucleo_f303re
new file mode 100644
index 00000000000..7f2ad4639e3
--- /dev/null
+++ b/boards/st/nucleo_f303re/Kconfig.nucleo_f303re
@@ -0,0 +1,5 @@
+# Copyright (c) 2020 Paul M. Bendixen
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_NUCLEO_F303RE
+	select SOC_STM32F303XE
diff --git a/boards/boards_legacy/arm/nucleo_f303re/arduino_r3_connector.dtsi b/boards/st/nucleo_f303re/arduino_r3_connector.dtsi
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_f303re/arduino_r3_connector.dtsi
rename to boards/st/nucleo_f303re/arduino_r3_connector.dtsi
diff --git a/boards/boards_legacy/arm/nucleo_f303re/board.cmake b/boards/st/nucleo_f303re/board.cmake
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_f303re/board.cmake
rename to boards/st/nucleo_f303re/board.cmake
diff --git a/boards/st/nucleo_f303re/board.yml b/boards/st/nucleo_f303re/board.yml
new file mode 100644
index 00000000000..dc99dcc1d6a
--- /dev/null
+++ b/boards/st/nucleo_f303re/board.yml
@@ -0,0 +1,5 @@
+board:
+  name: nucleo_f303re
+  vendor: st
+  socs:
+    - name: stm32f303xe
diff --git a/boards/boards_legacy/arm/nucleo_f303re/doc/img/nucleo_connectors.jpg b/boards/st/nucleo_f303re/doc/img/nucleo_connectors.jpg
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_f303re/doc/img/nucleo_connectors.jpg
rename to boards/st/nucleo_f303re/doc/img/nucleo_connectors.jpg
diff --git a/boards/boards_legacy/arm/nucleo_f303re/doc/img/nucleo_f303re.jpg b/boards/st/nucleo_f303re/doc/img/nucleo_f303re.jpg
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_f303re/doc/img/nucleo_f303re.jpg
rename to boards/st/nucleo_f303re/doc/img/nucleo_f303re.jpg
diff --git a/boards/boards_legacy/arm/nucleo_f303re/doc/index.rst b/boards/st/nucleo_f303re/doc/index.rst
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_f303re/doc/index.rst
rename to boards/st/nucleo_f303re/doc/index.rst
diff --git a/boards/boards_legacy/arm/nucleo_f303re/nucleo_f303re.dts b/boards/st/nucleo_f303re/nucleo_f303re.dts
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_f303re/nucleo_f303re.dts
rename to boards/st/nucleo_f303re/nucleo_f303re.dts
diff --git a/boards/boards_legacy/arm/nucleo_f303re/nucleo_f303re.yaml b/boards/st/nucleo_f303re/nucleo_f303re.yaml
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_f303re/nucleo_f303re.yaml
rename to boards/st/nucleo_f303re/nucleo_f303re.yaml
diff --git a/boards/boards_legacy/arm/nucleo_f303re/nucleo_f303re_defconfig b/boards/st/nucleo_f303re/nucleo_f303re_defconfig
similarity index 84%
rename from boards/boards_legacy/arm/nucleo_f303re/nucleo_f303re_defconfig
rename to boards/st/nucleo_f303re/nucleo_f303re_defconfig
index c73a485b239..2f2243e0a3b 100644
--- a/boards/boards_legacy/arm/nucleo_f303re/nucleo_f303re_defconfig
+++ b/boards/st/nucleo_f303re/nucleo_f303re_defconfig
@@ -1,8 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
-CONFIG_SOC_SERIES_STM32F3X=y
-CONFIG_SOC_STM32F303XE=y
-
 CONFIG_SERIAL=y
 
 # Enable MPU
diff --git a/boards/boards_legacy/arm/nucleo_f303re/st_morpho_connector.dtsi b/boards/st/nucleo_f303re/st_morpho_connector.dtsi
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_f303re/st_morpho_connector.dtsi
rename to boards/st/nucleo_f303re/st_morpho_connector.dtsi
diff --git a/boards/boards_legacy/arm/nucleo_f303re/support/openocd.cfg b/boards/st/nucleo_f303re/support/openocd.cfg
similarity index 100%
rename from boards/boards_legacy/arm/nucleo_f303re/support/openocd.cfg
rename to boards/st/nucleo_f303re/support/openocd.cfg