diff --git a/dts/arm/st/g0/stm32g0.dtsi b/dts/arm/st/g0/stm32g0.dtsi
index d03f9839de1..692eac5f29b 100644
--- a/dts/arm/st/g0/stm32g0.dtsi
+++ b/dts/arm/st/g0/stm32g0.dtsi
@@ -105,6 +105,13 @@
 			};
 		};
 
+		iwdg: watchdog@40003000 {
+			compatible = "st,stm32-watchdog";
+			reg = <0x40003000 0x400>;
+			label = "IWDG";
+			status = "disabled";
+		};
+
 		wwdg: watchdog@40002c00 {
 			compatible = "st,stm32-window-watchdog";
 			reg = <0x40002C00 0x400>;
diff --git a/soc/arm/st_stm32/stm32g0/dts_fixup.h b/soc/arm/st_stm32/stm32g0/dts_fixup.h
index 5a14004bcc0..0a73f0bdc44 100644
--- a/soc/arm/st_stm32/stm32g0/dts_fixup.h
+++ b/soc/arm/st_stm32/stm32g0/dts_fixup.h
@@ -97,6 +97,8 @@
 #define DT_UART_STM32_USART_2_CLOCK_BUS		DT_ST_STM32_USART_40004400_CLOCK_BUS
 #define DT_UART_STM32_USART_2_HW_FLOW_CONTROL	DT_ST_STM32_USART_40004400_HW_FLOW_CONTROL
 
+#define DT_WDT_0_NAME			DT_INST_0_ST_STM32_WATCHDOG_LABEL
+
 #define DT_WWDT_0_BASE_ADDRESS		DT_INST_0_ST_STM32_WINDOW_WATCHDOG_BASE_ADDRESS
 #define DT_WWDT_0_NAME			DT_INST_0_ST_STM32_WINDOW_WATCHDOG_LABEL
 #define DT_WWDT_0_IRQ			DT_INST_0_ST_STM32_WINDOW_WATCHDOG_IRQ_0
diff --git a/soc/arm/st_stm32/stm32g0/soc.h b/soc/arm/st_stm32/stm32g0/soc.h
index 00de3518792..70262c71da9 100644
--- a/soc/arm/st_stm32/stm32g0/soc.h
+++ b/soc/arm/st_stm32/stm32g0/soc.h
@@ -44,6 +44,10 @@
 #include <stm32g0xx_ll_i2c.h>
 #endif
 
+#ifdef CONFIG_IWDG_STM32
+#include <stm32g0xx_ll_iwdg.h>
+#endif
+
 #ifdef CONFIG_WWDG_STM32
 #include <stm32g0xx_ll_wwdg.h>
 #endif