diff --git a/soc/st/stm32/soc.yml b/soc/st/stm32/soc.yml
index ad54ebc6dd6ba8..d9d818818485cc 100644
--- a/soc/st/stm32/soc.yml
+++ b/soc/st/stm32/soc.yml
@@ -184,6 +184,7 @@ family:
   - name: stm32u0x
     socs:
     - name: stm32u031xx
+    - name: stm32u073xx
     - name: stm32u083xx
   - name: stm32u5x
     socs:
diff --git a/soc/st/stm32/stm32u0x/Kconfig.defconfig.stm32u073xx b/soc/st/stm32/stm32u0x/Kconfig.defconfig.stm32u073xx
new file mode 100644
index 00000000000000..0f74e39de4a120
--- /dev/null
+++ b/soc/st/stm32/stm32u0x/Kconfig.defconfig.stm32u073xx
@@ -0,0 +1,11 @@
+# STMicroelectronics STM32U073XX MCU
+
+# Copyright (c) 2024 STMicroelectronics
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_STM32U073XX
+
+config NUM_IRQS
+	default 32
+
+endif # SOC_STM32U073XX
diff --git a/soc/st/stm32/stm32u0x/Kconfig.soc b/soc/st/stm32/stm32u0x/Kconfig.soc
index 2b14e759b4528c..5150db3ca0cbaf 100644
--- a/soc/st/stm32/stm32u0x/Kconfig.soc
+++ b/soc/st/stm32/stm32u0x/Kconfig.soc
@@ -14,10 +14,15 @@ config SOC_STM32U031XX
 	bool
 	select SOC_SERIES_STM32U0X
 
+config SOC_STM32U073XX
+	bool
+	select SOC_SERIES_STM32U0X
+
 config SOC_STM32U083XX
 	bool
 	select SOC_SERIES_STM32U0X
 
 config SOC
 	default "stm32u031xx" if SOC_STM32U031XX
+	default "stm32u073xx" if SOC_STM32U073XX
 	default "stm32u083xx" if SOC_STM32U083XX