diff --git a/boards/wiznet/w5500_evb_pico/board.yml b/boards/wiznet/w5500_evb_pico/board.yml
index eb4eed60b88b..e80be185286f 100644
--- a/boards/wiznet/w5500_evb_pico/board.yml
+++ b/boards/wiznet/w5500_evb_pico/board.yml
@@ -1,6 +1,6 @@
 board:
   name: w5500_evb_pico
-  full_name: W5500 Evaluation Pico
+  full_name: W5500-EVB-Pico
   vendor: wiznet
   socs:
   - name: rp2040
diff --git a/boards/wiznet/w5500_evb_pico2/Kconfig.defconfig b/boards/wiznet/w5500_evb_pico2/Kconfig.defconfig
new file mode 100644
index 000000000000..1af3e24b6f08
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/Kconfig.defconfig
@@ -0,0 +1,19 @@
+# Copyright (c) 2025 TOKITA Hiroshi
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_W5500_EVB_PICO2
+
+if NETWORKING
+
+config NET_L2_ETHERNET
+	default y
+
+endif # NETWORKING
+
+config USB_SELF_POWERED
+	default n
+
+config SYS_CLOCK_HW_CYCLES_PER_SEC
+	default 150000000
+
+endif # BOARD_W5500_EVB_PICO2
diff --git a/boards/wiznet/w5500_evb_pico2/Kconfig.w5500_evb_pico2 b/boards/wiznet/w5500_evb_pico2/Kconfig.w5500_evb_pico2
new file mode 100644
index 000000000000..ef3da1e97c30
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/Kconfig.w5500_evb_pico2
@@ -0,0 +1,5 @@
+# Copyright (c) 2025 TOKITA Hiroshi
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_W5500_EVB_PICO2
+	select SOC_RP2350A_M33 if BOARD_W5500_EVB_PICO2_RP2350A_M33
diff --git a/boards/wiznet/w5500_evb_pico2/board.cmake b/boards/wiznet/w5500_evb_pico2/board.cmake
new file mode 100644
index 000000000000..feae063129ac
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/board.cmake
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: Apache-2.0
+
+if("${RPI_PICO_DEBUG_ADAPTER}" STREQUAL "")
+	set(RPI_PICO_DEBUG_ADAPTER "cmsis-dap")
+endif()
+
+board_runner_args(openocd --cmd-pre-init "source [find interface/${RPI_PICO_DEBUG_ADAPTER}.cfg]")
+board_runner_args(openocd --cmd-pre-init "source [find target/rp2350.cfg]")
+
+# The adapter speed is expected to be set by interface configuration.
+# The Raspberry Pi's OpenOCD fork doesn't, so match their documentation at
+# https://www.raspberrypi.com/documentation/microcontrollers/debug-probe.html#debugging-with-swd
+board_runner_args(openocd --cmd-pre-init "set_adapter_speed_if_not_set 5000")
+
+board_runner_args(uf2 "--board-id=RP2350")
+
+include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/uf2.board.cmake)
diff --git a/boards/wiznet/w5500_evb_pico2/board.yml b/boards/wiznet/w5500_evb_pico2/board.yml
new file mode 100644
index 000000000000..61a534601dc3
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/board.yml
@@ -0,0 +1,6 @@
+board:
+  name: w5500_evb_pico2
+  full_name: W5500-EVB-Pico2
+  vendor: wiznet
+  socs:
+  - name: rp2350a
diff --git a/boards/wiznet/w5500_evb_pico2/doc/img/w5500_evb_pico2.webp b/boards/wiznet/w5500_evb_pico2/doc/img/w5500_evb_pico2.webp
new file mode 100644
index 000000000000..cd0ced64165d
Binary files /dev/null and b/boards/wiznet/w5500_evb_pico2/doc/img/w5500_evb_pico2.webp differ
diff --git a/boards/wiznet/w5500_evb_pico2/doc/index.rst b/boards/wiznet/w5500_evb_pico2/doc/index.rst
new file mode 100644
index 000000000000..d1aefc4e9f73
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/doc/index.rst
@@ -0,0 +1,136 @@
+.. zephyr:board:: w5500_evb_pico2
+
+Overview
+********
+
+W5500-EVB-Pico2 is a microcontroller evaluation board based on the Raspberry
+Pi RP2350A and fully hardwired TCP/IP controller W5500 - and basically works
+the same as Raspberry Pi Pico2 board but with additional Ethernet via W5500.
+The USB bootloader allows the ability to flash without any adapter, in a
+drag-and-drop manner. It is also possible to flash and debug the boards with
+their SWD interface, using an external adapter.
+
+Hardware
+********
+
+- Dual core Arm Cortex-M33 or Hazard3 processor running up to 133MHz
+- 520KB on-chip SRAM
+- 16MB on-board QSPI flash with XIP capabilities
+- 26 GPIO pins
+- 3 Analog inputs
+- 2 UART peripherals
+- 2 SPI controllers
+- 2 I2C controllers
+- 16 PWM channels
+- USB 1.1 controller (host/device)
+- 3 Programmable I/O (PIO) for custom peripherals
+- On-board LED
+- 1 Watchdog timer peripheral
+- Wiznet W5500 Ethernet MAC/PHY
+
+Supported Features
+==================
+
+.. zephyr:board-supported-hw::
+
+Pin Mapping
+===========
+
+The peripherals of the RP2350A SoC can be routed to various pins on the board.
+The configuration of these routes can be modified through DTS. Please refer to
+the datasheet to see the possible routings for each peripheral.
+
+External pin mapping on the W5500_EVB_PICO2 is identical to the Raspberry Pi
+Pico2. Since GPIO 25 is routed to the on-board LED on, similar to the Raspberry
+Pi Pico, the blinky example works as intended. The W5500 is routed to the SPI0
+(P16-P19), with the reset and interrupt signal for the W5500 routed to P20 and
+P21, respectively. All of these are shared with the edge connector on the
+board.
+
+Refer to `W55500 Evaluation Board Pico2 Documentation`_ for a board schematic and
+other certifications.
+
+Default Zephyr Peripheral Mapping:
+----------------------------------
+
+.. rst-class:: rst-columns
+
+- UART0_TX : P0
+- UART0_RX : P1
+- I2C0_SDA : P4
+- I2C0_SCL : P5
+- I2C1_SDA : P14
+- I2C1_SCL : P15
+- SPI0_RX : P16
+- SPI0_CSN : P17
+- SPI0_SCK : P18
+- SPI0_TX : P19
+- W5500 Reset : P20
+- W5500 Interrupt : P21
+- ADC_CH0 : P26
+- ADC_CH1 : P27
+- ADC_CH2 : P28
+- ADC_CH3 : P29
+
+Programming and Debugging
+*************************
+
+Flashing
+========
+
+Using OpenOCD
+-------------
+
+The overall explanation regarding flashing and debugging is the same as or
+``rpi_pico``.
+See :ref:`rpi_pico_flashing_using_openocd`. in ``rpi_pico`` documentation.
+
+A typical build command for w5500_evb_pico2 is as follows.
+This assumes a CMSIS-DAP adapter such as the RaspberryPi Debug Probe,
+but if you are using something else, specify ``RPI_PICO_DEBUG_ADAPTER``.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/basic/blinky
+   :board: w5500_evb_pico2
+   :goals: build flash
+   :gen-args: -DOPENOCD=/usr/local/bin/openocd
+
+Using UF2
+---------
+
+If you don't have an SWD adapter, you can flash the Raspberry Pi Pico with
+a UF2 file. By default, building an app for this board will generate a
+:file:`build/zephyr/zephyr.uf2` file. If the Pico is powered on with the ``BOOTSEL``
+button pressed, it will appear on the host as a mass storage device. The
+UF2 file should be drag-and-dropped to the device, which will flash the Pico.
+
+Debugging
+=========
+
+The SWD interface can also be used to debug the board. To achieve this, you can
+either use SEGGER JLink or OpenOCD.
+
+Using OpenOCD
+-------------
+
+Install OpenOCD as described for flashing the board.
+
+Here is an example for debugging the :zephyr:code-sample:`blinky` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/basic/blinky
+   :board: w5500_evb_pico2
+   :maybe-skip-config:
+   :goals: debug
+   :gen-args: -DOPENOCD=/usr/local/bin/openocd
+
+.. target-notes::
+
+.. _pico_setup.sh:
+  https://raw.githubusercontent.com/raspberrypi/pico-setup/master/pico_setup.sh
+
+.. _Getting Started with Raspberry Pi Pico:
+  https://datasheets.raspberrypi.com/pico/getting-started-with-pico.pdf
+
+.. _W55500 Evaluation Board Pico2 Documentation:
+  https://docs.wiznet.io/Product/iEthernet/W5500/w5500-evb-pico2
diff --git a/boards/wiznet/w5500_evb_pico2/support/openocd.cfg b/boards/wiznet/w5500_evb_pico2/support/openocd.cfg
new file mode 100644
index 000000000000..0f833247bc60
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/support/openocd.cfg
@@ -0,0 +1,11 @@
+# Copyright (c) 2025 TOKITA Hiroshi
+# SPDX-License-Identifier: Apache-2.0
+
+# Checking and set 'adapter speed'.
+# Set the adaptor speed, if unset, and given as an argument.
+proc set_adapter_speed_if_not_set { speed } {
+	puts "checking adapter speed..."
+	if { [catch {adapter speed} ret] } {
+		adapter speed $speed
+	}
+}
diff --git a/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2-pinctrl.dtsi b/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2-pinctrl.dtsi
new file mode 100644
index 000000000000..dffd24d8aeaa
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2-pinctrl.dtsi
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2021, Yonatan Schachter
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pinctrl/rpi-pico-rp2350a-pinctrl.h>
+
+&pinctrl {
+	uart0_default: uart0_default {
+		group1 {
+			pinmux = <UART0_TX_P0>;
+		};
+
+		group2 {
+			pinmux = <UART0_RX_P1>;
+			input-enable;
+		};
+	};
+
+	i2c0_default: i2c0_default {
+		group1 {
+			pinmux = <I2C0_SDA_P4>, <I2C0_SCL_P5>;
+			input-enable;
+			input-schmitt-enable;
+		};
+	};
+
+	i2c1_default: i2c1_default {
+		group1 {
+			pinmux = <I2C1_SDA_P6>, <I2C1_SCL_P7>;
+			input-enable;
+			input-schmitt-enable;
+		};
+	};
+
+	spi0_default: spi0_default {
+		group1 {
+			pinmux = <SPI0_CSN_P17>, <SPI0_SCK_P18>, <SPI0_TX_P19>;
+		};
+
+		group2 {
+			pinmux = <SPI0_RX_P16>;
+			input-enable;
+		};
+	};
+
+	pwm_ch4b_default: pwm_ch4b_default {
+		group1 {
+			pinmux = <PWM_4B_P25>;
+		};
+	};
+
+	adc_default: adc_default {
+		group1 {
+			pinmux = <ADC_CH0_P26>, <ADC_CH1_P27>, <ADC_CH2_P28>, <ADC_CH3_P29>;
+			input-enable;
+		};
+	};
+};
diff --git a/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2.dtsi b/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2.dtsi
new file mode 100644
index 000000000000..5a0959d721e6
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2.dtsi
@@ -0,0 +1,176 @@
+/*
+ * Copyright (c) 2025 TOKITA Hiroshi
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <freq.h>
+
+#include <zephyr/dt-bindings/i2c/i2c.h>
+#include <zephyr/dt-bindings/pwm/pwm.h>
+#include <zephyr/dt-bindings/gpio/gpio.h>
+
+#include "w5500_evb_pico2-pinctrl.dtsi"
+
+/ {
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+		zephyr,code-partition = &code_partition;
+	};
+
+	pico_header: connector {
+		compatible = "raspberrypi,pico-header";
+		#gpio-cells = <2>;
+		gpio-map-mask = <0xffffffff 0xffffffc0>;
+		gpio-map-pass-thru = <0 0x3f>;
+		gpio-map = <0 0 &gpio0 0 0>,	/* GP0 */
+			<1 0 &gpio0 1 0>,	/* GP1 */
+			<2 0 &gpio0 2 0>,	/* GP2 */
+			<3 0 &gpio0 3 0>,	/* GP3 */
+			<4 0 &gpio0 4 0>,	/* GP4 */
+			<5 0 &gpio0 5 0>,	/* GP5 */
+			<6 0 &gpio0 6 0>,	/* GP6 */
+			<7 0 &gpio0 7 0>,	/* GP7 */
+			<8 0 &gpio0 8 0>,	/* GP8 */
+			<9 0 &gpio0 9 0>,	/* GP9 */
+			<10 0 &gpio0 10 0>,	/* GP10 */
+			<11 0 &gpio0 11 0>,	/* GP11 */
+			<12 0 &gpio0 12 0>,	/* GP12 */
+			<13 0 &gpio0 13 0>,	/* GP13 */
+			<14 0 &gpio0 14 0>,	/* GP14 */
+			<15 0 &gpio0 15 0>,	/* GP15 */
+			<16 0 &gpio0 16 0>,	/* GP16 */
+			<17 0 &gpio0 17 0>,	/* GP17 */
+			<18 0 &gpio0 18 0>,	/* GP18 */
+			<19 0 &gpio0 19 0>,	/* GP19 */
+			<20 0 &gpio0 20 0>,	/* GP20 */
+			<21 0 &gpio0 21 0>,	/* GP21 */
+			<22 0 &gpio0 22 0>,	/* GP22 */
+			<26 0 &gpio0 26 0>,	/* GP26 */
+			<27 0 &gpio0 27 0>,	/* GP27 */
+			<28 0 &gpio0 28 0>;	/* GP28 */
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led0: led_0 {
+			gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>;
+			label = "LED";
+		};
+	};
+
+	pwm_leds {
+		compatible = "pwm-leds";
+		status = "disabled";
+
+		pwm_led0: pwm_led_0 {
+			pwms = <&pwm 9 PWM_MSEC(20) PWM_POLARITY_NORMAL>;
+			label = "PWM_LED";
+		};
+	};
+
+	aliases {
+		led0 = &led0;
+		pwm-led0 = &pwm_led0;
+		watchdog0 = &wdt0;
+	};
+};
+
+&flash0 {
+	/* 16MB of flash minus the 0x100 used for
+	 * the second stage bootloader
+	 */
+	reg = <0x10000000 DT_SIZE_M(16)>;
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* Reserved memory for the second stage bootloader */
+		second_stage_bootloader: partition@0 {
+			label = "second_stage_bootloader";
+			reg = <0x00000000 0x100>;
+			read-only;
+		};
+
+		/*
+		 * Usable flash. Starts at 0x100, after the bootloader. The partition
+		 * size is 16MB minus the 0x100 bytes taken by the bootloader.
+		 */
+		code_partition: partition@100 {
+			label = "code-partition";
+			reg = <0x100 (DT_SIZE_M(16) - 0x100)>;
+			read-only;
+		};
+	};
+};
+
+&uart0 {
+	current-speed = <115200>;
+	status = "okay";
+	pinctrl-0 = <&uart0_default>;
+	pinctrl-names = "default";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&spi0 {
+	clock-frequency = <DT_FREQ_M(8)>;
+	status = "okay";
+	pinctrl-0 = <&spi0_default>;
+	pinctrl-names = "default";
+	cs-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
+
+	ethernet: w5500@0 {
+		compatible = "wiznet,w5500";
+		reg = <0x0>;
+		spi-max-frequency = <50000000>;
+		int-gpios = <&gpio0 21 GPIO_ACTIVE_LOW>;
+		reset-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
+		local-mac-address = [00 00 00 01 02 03];
+		status = "okay";
+	};
+};
+
+&i2c0 {
+	clock-frequency = <I2C_BITRATE_STANDARD>;
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&adc {
+	pinctrl-0 = <&adc_default>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&pwm {
+	pinctrl-0 = <&pwm_ch4b_default>;
+	pinctrl-names = "default";
+	divider-int-0 = <255>;
+};
+
+&timer0 {
+	status = "okay";
+};
+
+&wdt0 {
+	status = "okay";
+};
+
+zephyr_udc0: &usbd {
+	status = "okay";
+};
+
+pico_spi: &spi0 {};
+pico_i2c0: &i2c0 {};
+pico_i2c1: &i2c1 {};
+pico_serial: &uart0 {};
diff --git a/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2_rp2350a_m33.dts b/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2_rp2350a_m33.dts
new file mode 100644
index 000000000000..88ba8a6d16c4
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2_rp2350a_m33.dts
@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2025 TOKITA Hiroshi
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <raspberrypi/rpi_pico/rp2350a.dtsi>
+#include <raspberrypi/rpi_pico/m33.dtsi>
+#include "w5500_evb_pico2.dtsi"
diff --git a/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2_rp2350a_m33.yaml b/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2_rp2350a_m33.yaml
new file mode 100644
index 000000000000..aea485945f36
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2_rp2350a_m33.yaml
@@ -0,0 +1,21 @@
+identifier: w5500_evb_pico2/rp2350a/m33
+name: Wiznet W5500 Evaluation Board with RP2350
+type: mcu
+arch: arm
+flash: 16384
+ram: 520
+toolchain:
+  - zephyr
+  - gnuarmemb
+supported:
+  - adc
+  - clock
+  - counter
+  - dma
+  - gpio
+  - hwinfo
+  - i2c
+  - pwm
+  - spi
+  - uart
+  - watchdog
diff --git a/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2_rp2350a_m33_defconfig b/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2_rp2350a_m33_defconfig
new file mode 100644
index 000000000000..aaaa51cbdb98
--- /dev/null
+++ b/boards/wiznet/w5500_evb_pico2/w5500_evb_pico2_rp2350a_m33_defconfig
@@ -0,0 +1,10 @@
+CONFIG_SERIAL=y
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+CONFIG_GPIO=y
+CONFIG_USE_DT_CODE_PARTITION=y
+CONFIG_BUILD_OUTPUT_UF2=y
+CONFIG_BUILD_OUTPUT_HEX=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+CONFIG_RESET=y
+CONFIG_CLOCK_CONTROL=y
diff --git a/tests/drivers/adc/adc_api/boards/w5500_evb_pico2_rp2350a_m33.overlay b/tests/drivers/adc/adc_api/boards/w5500_evb_pico2_rp2350a_m33.overlay
new file mode 100644
index 000000000000..fb0ecaac606a
--- /dev/null
+++ b/tests/drivers/adc/adc_api/boards/w5500_evb_pico2_rp2350a_m33.overlay
@@ -0,0 +1,12 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright (c) 2025 TOKITA Hiroshi
+ */
+
+/* W5500 EVB Pico2 can work the same configuration as W5500 EVB Pico */
+#include "w5500_evb_pico.overlay"
+
+&adc {
+	status = "okay";
+};