diff --git a/dts/arm/st/wb/stm32wb.dtsi b/dts/arm/st/wb/stm32wb.dtsi
index a54d47cdf40..aad89eeb9b7 100644
--- a/dts/arm/st/wb/stm32wb.dtsi
+++ b/dts/arm/st/wb/stm32wb.dtsi
@@ -271,6 +271,12 @@
 			label = "ADC_1";
 			#io-channel-cells = <1>;
 		};
+
+		iwdg: watchdog@40003000 {
+			compatible = "st,stm32-watchdog";
+			reg = <0x40003000 0x400>;
+			label = "IWDG";
+		};
 	};
 };
 
diff --git a/soc/arm/st_stm32/stm32wb/dts_fixup.h b/soc/arm/st_stm32/stm32wb/dts_fixup.h
index d8d93d93fe9..ce546d2dbf2 100644
--- a/soc/arm/st_stm32/stm32wb/dts_fixup.h
+++ b/soc/arm/st_stm32/stm32wb/dts_fixup.h
@@ -155,6 +155,8 @@
 #define DT_ADC_1_CLOCK_BITS		DT_ST_STM32_ADC_50040000_CLOCK_BITS_0
 #define DT_ADC_1_CLOCK_BUS		DT_ST_STM32_ADC_50040000_CLOCK_BUS_0
 
+#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/stm32wb/soc.h b/soc/arm/st_stm32/stm32wb/soc.h
index 26c4fa4464a..ca1b77ab1e6 100644
--- a/soc/arm/st_stm32/stm32wb/soc.h
+++ b/soc/arm/st_stm32/stm32wb/soc.h
@@ -55,7 +55,7 @@
 #endif /* CONFIG_FLASH */
 #ifdef CONFIG_I2C
 #include <stm32wbxx_ll_i2c.h>
-#endif
+#endif /* CONFIG_I2C */
 
 #ifdef CONFIG_SPI_STM32
 #include <stm32wbxx_ll_spi.h>
@@ -63,7 +63,11 @@
 
 #ifdef CONFIG_ADC_STM32
 #include <stm32wbxx_ll_adc.h>
-#endif
+#endif /* CONFIG_ADC_STM32 */
+
+#ifdef CONFIG_IWDG_STM32
+#include <stm32wbxx_ll_iwdg.h>
+#endif /* CONFIG_IWDG_STM32 */
 
 #ifdef CONFIG_WWDG_STM32
 #include <stm32wbxx_ll_wwdg.h>