diff --git a/boards/renesas/ek_rx261/ek_rx261-pinctrl.dtsi b/boards/renesas/ek_rx261/ek_rx261-pinctrl.dtsi
index 4b893daead41f..5aa2fc1fac96d 100644
--- a/boards/renesas/ek_rx261/ek_rx261-pinctrl.dtsi
+++ b/boards/renesas/ek_rx261/ek_rx261-pinctrl.dtsi
@@ -11,4 +11,11 @@
 				<RX_PSEL(RX_PSEL_SCI_6, 11, 0)>; /* RX */
 		};
 	};
+
+	i2c0_default: i2c0_default {
+		group1 {
+			psels = <RX_PSEL(RX_PSEL_P1nPFS_SDA, 1, 3)>, /* SDA P13*/
+				<RX_PSEL(RX_PSEL_P1nPFS_SCL, 1, 2)>; /* SCL P12*/
+		};
+	};
 };
diff --git a/boards/renesas/ek_rx261/ek_rx261.dts b/boards/renesas/ek_rx261/ek_rx261.dts
index 06d7df0b998bd..e8da25183c649 100644
--- a/boards/renesas/ek_rx261/ek_rx261.dts
+++ b/boards/renesas/ek_rx261/ek_rx261.dts
@@ -95,3 +95,10 @@
 		status = "okay";
 	};
 };
+
+&i2c0 {
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-names = "default";
+	clock-frequency = <DT_FREQ_K(400)>;
+	status = "okay";
+};
diff --git a/boards/renesas/fpb_rx261/fpb_rx261-pinctrl.dtsi b/boards/renesas/fpb_rx261/fpb_rx261-pinctrl.dtsi
index e00377a7d4b34..28196d434c2de 100644
--- a/boards/renesas/fpb_rx261/fpb_rx261-pinctrl.dtsi
+++ b/boards/renesas/fpb_rx261/fpb_rx261-pinctrl.dtsi
@@ -11,4 +11,11 @@
 				<RX_PSEL(RX_PSEL_SCI_5, 0xC, 0x2)>; /* RX */
 		};
 	};
+
+	i2c0_default: i2c0_default {
+		group1 {
+			psels = <RX_PSEL(RX_PSEL_P1nPFS_SDA, 1, 3)>, /* SDA P13*/
+				<RX_PSEL(RX_PSEL_P1nPFS_SCL, 1, 2)>; /* SCL P12*/
+		};
+	};
 };
diff --git a/boards/renesas/fpb_rx261/fpb_rx261.dts b/boards/renesas/fpb_rx261/fpb_rx261.dts
index aa024097aa98d..1d10adc2cb6df 100644
--- a/boards/renesas/fpb_rx261/fpb_rx261.dts
+++ b/boards/renesas/fpb_rx261/fpb_rx261.dts
@@ -84,3 +84,10 @@
 		status = "okay";
 	};
 };
+
+&i2c0 {
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-names = "default";
+	clock-frequency = <DT_FREQ_K(400)>;
+	status = "okay";
+};
diff --git a/dts/rx/renesas/rx261-common.dtsi b/dts/rx/renesas/rx261-common.dtsi
index 50562213aec9a..65197369dd141 100644
--- a/dts/rx/renesas/rx261-common.dtsi
+++ b/dts/rx/renesas/rx261-common.dtsi
@@ -455,6 +455,18 @@
 			};
 		};
 
+		i2c0: i2c@88300 {
+			compatible = "renesas,rx-i2c";
+			#address-cells = <0x1>;
+			#size-cells = <0x0>;
+			reg = <0x88300 0x20>;
+			clocks = <&pclkb MSTPB 21>;
+			channel = <0>;
+			interrupts = <246 1>, <247 1>, <248 1>, <249 1>;
+			interrupt-names = "eei", "rxi", "txi", "tei";
+			status = "disabled";
+		};
+
 		cmt: timer@88000 {
 			compatible = "renesas,rx-timer-cmt-start-control";
 			#address-cells = <1>;
diff --git a/tests/drivers/i2c/i2c_api/boards/ek_rx261.conf b/tests/drivers/i2c/i2c_api/boards/ek_rx261.conf
new file mode 100644
index 0000000000000..83547b4fe7250
--- /dev/null
+++ b/tests/drivers/i2c/i2c_api/boards/ek_rx261.conf
@@ -0,0 +1 @@
+CONFIG_SENSOR_GY271_QMC=y
diff --git a/tests/drivers/i2c/i2c_api/boards/ek_rx261.overlay b/tests/drivers/i2c/i2c_api/boards/ek_rx261.overlay
new file mode 100644
index 0000000000000..7e9557833e94e
--- /dev/null
+++ b/tests/drivers/i2c/i2c_api/boards/ek_rx261.overlay
@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	aliases {
+		i2c-0 = &i2c0;
+		gy271 = &i2c0;
+	};
+};
diff --git a/tests/drivers/i2c/i2c_api/boards/fpb_rx261.conf b/tests/drivers/i2c/i2c_api/boards/fpb_rx261.conf
new file mode 100644
index 0000000000000..83547b4fe7250
--- /dev/null
+++ b/tests/drivers/i2c/i2c_api/boards/fpb_rx261.conf
@@ -0,0 +1 @@
+CONFIG_SENSOR_GY271_QMC=y
diff --git a/tests/drivers/i2c/i2c_api/boards/fpb_rx261.overlay b/tests/drivers/i2c/i2c_api/boards/fpb_rx261.overlay
new file mode 100644
index 0000000000000..7e9557833e94e
--- /dev/null
+++ b/tests/drivers/i2c/i2c_api/boards/fpb_rx261.overlay
@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	aliases {
+		i2c-0 = &i2c0;
+		gy271 = &i2c0;
+	};
+};
diff --git a/west.yml b/west.yml
index 6ea7cb3ba06ef..43fc5ab4d10ad 100644
--- a/west.yml
+++ b/west.yml
@@ -226,7 +226,7 @@ manifest:
         - hal
     - name: hal_renesas
       path: modules/hal/renesas
-      revision: a279c14e196cb0904593035888a334dcd2c720bd
+      revision: pull/170/head
       groups:
         - hal
     - name: hal_rpi_pico