diff --git a/homeassistant/components/zwave_js/const.py b/homeassistant/components/zwave_js/const.py
index a8b0ddac9fd..248553648e8 100644
--- a/homeassistant/components/zwave_js/const.py
+++ b/homeassistant/components/zwave_js/const.py
@@ -3,7 +3,16 @@
 
 DOMAIN = "zwave_js"
 NAME = "Z-Wave JS"
-PLATFORMS = ["binary_sensor", "climate", "cover", "light", "lock", "sensor", "switch"]
+PLATFORMS = [
+    "binary_sensor",
+    "climate",
+    "cover",
+    "fan",
+    "light",
+    "lock",
+    "sensor",
+    "switch",
+]
 
 DATA_CLIENT = "client"
 DATA_UNSUBSCRIBE = "unsubs"
diff --git a/homeassistant/components/zwave_js/discovery.py b/homeassistant/components/zwave_js/discovery.py
index 79bfcc9a811..7bef6eb603f 100644
--- a/homeassistant/components/zwave_js/discovery.py
+++ b/homeassistant/components/zwave_js/discovery.py
@@ -169,6 +169,16 @@ DISCOVERY_SCHEMAS = [
         property={"currentValue"},
         type={"number"},
     ),
+    # fan
+    ZWaveDiscoverySchema(
+        platform="fan",
+        hint="fan",
+        device_class_generic={"Multilevel Switch"},
+        device_class_specific={"Fan Switch"},
+        command_class={CommandClass.SWITCH_MULTILEVEL},
+        property={"currentValue"},
+        type={"number"},
+    ),
 ]
 
 
diff --git a/homeassistant/components/zwave_js/fan.py b/homeassistant/components/zwave_js/fan.py
new file mode 100644
index 00000000000..7113272d2ea
--- /dev/null
+++ b/homeassistant/components/zwave_js/fan.py
@@ -0,0 +1,112 @@
+"""Support for Z-Wave fans."""
+import logging
+import math
+from typing import Any, Callable, List, Optional
+
+from zwave_js_server.client import Client as ZwaveClient
+
+from homeassistant.components.fan import (
+    DOMAIN as FAN_DOMAIN,
+    SPEED_HIGH,
+    SPEED_LOW,
+    SPEED_MEDIUM,
+    SPEED_OFF,
+    SUPPORT_SET_SPEED,
+    FanEntity,
+)
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant, callback
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+from .const import DATA_CLIENT, DATA_UNSUBSCRIBE, DOMAIN
+from .discovery import ZwaveDiscoveryInfo
+from .entity import ZWaveBaseEntity
+
+_LOGGER = logging.getLogger(__name__)
+
+SUPPORTED_FEATURES = SUPPORT_SET_SPEED
+
+# Value will first be divided to an integer
+VALUE_TO_SPEED = {0: SPEED_OFF, 1: SPEED_LOW, 2: SPEED_MEDIUM, 3: SPEED_HIGH}
+SPEED_TO_VALUE = {SPEED_OFF: 0, SPEED_LOW: 1, SPEED_MEDIUM: 50, SPEED_HIGH: 99}
+SPEED_LIST = [*SPEED_TO_VALUE]
+
+
+async def async_setup_entry(
+    hass: HomeAssistant, config_entry: ConfigEntry, async_add_entities: Callable
+) -> None:
+    """Set up Z-Wave Fan from Config Entry."""
+    client: ZwaveClient = hass.data[DOMAIN][config_entry.entry_id][DATA_CLIENT]
+
+    @callback
+    def async_add_fan(info: ZwaveDiscoveryInfo) -> None:
+        """Add Z-Wave fan."""
+        entities: List[ZWaveBaseEntity] = []
+        entities.append(ZwaveFan(config_entry, client, info))
+        async_add_entities(entities)
+
+    hass.data[DOMAIN][config_entry.entry_id][DATA_UNSUBSCRIBE].append(
+        async_dispatcher_connect(
+            hass,
+            f"{DOMAIN}_{config_entry.entry_id}_add_{FAN_DOMAIN}",
+            async_add_fan,
+        )
+    )
+
+
+class ZwaveFan(ZWaveBaseEntity, FanEntity):
+    """Representation of a Z-Wave fan."""
+
+    def __init__(
+        self, config_entry: ConfigEntry, client: ZwaveClient, info: ZwaveDiscoveryInfo
+    ) -> None:
+        """Initialize the fan."""
+        super().__init__(config_entry, client, info)
+        self._previous_speed: Optional[str] = None
+
+    async def async_set_speed(self, speed: str) -> None:
+        """Set the speed of the fan."""
+        if speed not in SPEED_TO_VALUE:
+            raise ValueError(f"Invalid speed received: {speed}")
+        self._previous_speed = speed
+        target_value = self.get_zwave_value("targetValue")
+        await self.info.node.async_set_value(target_value, SPEED_TO_VALUE[speed])
+
+    async def async_turn_on(self, speed: Optional[str] = None, **kwargs: Any) -> None:
+        """Turn the device on."""
+        if speed is None:
+            # Value 255 tells device to return to previous value
+            target_value = self.get_zwave_value("targetValue")
+            await self.info.node.async_set_value(target_value, 255)
+        else:
+            await self.async_set_speed(speed)
+
+    async def async_turn_off(self, **kwargs: Any) -> None:
+        """Turn the device off."""
+        target_value = self.get_zwave_value("targetValue")
+        await self.info.node.async_set_value(target_value, 0)
+
+    @property
+    def is_on(self) -> bool:
+        """Return true if device is on (speed above 0)."""
+        return bool(self.info.primary_value.value > 0)
+
+    @property
+    def speed(self) -> Optional[str]:
+        """Return the current speed.
+
+        The Z-Wave speed value is a byte 0-255. 255 means previous value.
+        The normal range of the speed is 0-99. 0 means off.
+        """
+        value = math.ceil(self.info.primary_value.value * 3 / 100)
+        return VALUE_TO_SPEED.get(value, self._previous_speed)
+
+    @property
+    def speed_list(self) -> List[str]:
+        """Get the list of available speeds."""
+        return SPEED_LIST
+
+    @property
+    def supported_features(self) -> int:
+        """Flag supported features."""
+        return SUPPORTED_FEATURES
diff --git a/tests/components/zwave_js/conftest.py b/tests/components/zwave_js/conftest.py
index 70c045816d5..74bf103a49e 100644
--- a/tests/components/zwave_js/conftest.py
+++ b/tests/components/zwave_js/conftest.py
@@ -88,6 +88,12 @@ def window_cover_state_fixture():
     return json.loads(load_fixture("zwave_js/chain_actuator_zws12_state.json"))
 
 
+@pytest.fixture(name="in_wall_smart_fan_control_state", scope="session")
+def in_wall_smart_fan_control_state_fixture():
+    """Load the fan node state fixture data."""
+    return json.loads(load_fixture("zwave_js/in_wall_smart_fan_control_state.json"))
+
+
 @pytest.fixture(name="client")
 def mock_client_fixture(controller_state, version_state):
     """Mock a client."""
@@ -204,3 +210,11 @@ def window_cover_fixture(client, chain_actuator_zws12_state):
     node = Node(client, chain_actuator_zws12_state)
     client.driver.controller.nodes[node.node_id] = node
     return node
+
+
+@pytest.fixture(name="in_wall_smart_fan_control")
+def in_wall_smart_fan_control_fixture(client, in_wall_smart_fan_control_state):
+    """Mock a fan node."""
+    node = Node(client, in_wall_smart_fan_control_state)
+    client.driver.controller.nodes[node.node_id] = node
+    return node
diff --git a/tests/components/zwave_js/test_fan.py b/tests/components/zwave_js/test_fan.py
new file mode 100644
index 00000000000..5b726179ac9
--- /dev/null
+++ b/tests/components/zwave_js/test_fan.py
@@ -0,0 +1,172 @@
+"""Test the Z-Wave JS fan platform."""
+import pytest
+from zwave_js_server.event import Event
+
+from homeassistant.components.fan import ATTR_SPEED, SPEED_MEDIUM
+
+FAN_ENTITY = "fan.in_wall_smart_fan_control_current_value"
+
+
+async def test_fan(hass, client, in_wall_smart_fan_control, integration):
+    """Test the fan entity."""
+    node = in_wall_smart_fan_control
+    state = hass.states.get(FAN_ENTITY)
+
+    assert state
+    assert state.state == "off"
+
+    # Test turn on setting speed
+    await hass.services.async_call(
+        "fan",
+        "turn_on",
+        {"entity_id": FAN_ENTITY, "speed": SPEED_MEDIUM},
+        blocking=True,
+    )
+
+    assert len(client.async_send_command.call_args_list) == 1
+    args = client.async_send_command.call_args[0][0]
+    assert args["command"] == "node.set_value"
+    assert args["nodeId"] == 17
+    assert args["valueId"] == {
+        "commandClassName": "Multilevel Switch",
+        "commandClass": 38,
+        "endpoint": 0,
+        "property": "targetValue",
+        "propertyName": "targetValue",
+        "metadata": {
+            "label": "Target value",
+            "max": 99,
+            "min": 0,
+            "type": "number",
+            "readable": True,
+            "writeable": True,
+            "label": "Target value",
+        },
+    }
+    assert args["value"] == 50
+
+    client.async_send_command.reset_mock()
+
+    # Test setting unknown speed
+    with pytest.raises(ValueError):
+        await hass.services.async_call(
+            "fan",
+            "set_speed",
+            {"entity_id": FAN_ENTITY, "speed": 99},
+            blocking=True,
+        )
+
+    client.async_send_command.reset_mock()
+
+    # Test turn on no speed
+    await hass.services.async_call(
+        "fan",
+        "turn_on",
+        {"entity_id": FAN_ENTITY},
+        blocking=True,
+    )
+
+    assert len(client.async_send_command.call_args_list) == 1
+    args = client.async_send_command.call_args[0][0]
+    assert args["command"] == "node.set_value"
+    assert args["nodeId"] == 17
+    assert args["valueId"] == {
+        "commandClassName": "Multilevel Switch",
+        "commandClass": 38,
+        "endpoint": 0,
+        "property": "targetValue",
+        "propertyName": "targetValue",
+        "metadata": {
+            "label": "Target value",
+            "max": 99,
+            "min": 0,
+            "type": "number",
+            "readable": True,
+            "writeable": True,
+            "label": "Target value",
+        },
+    }
+    assert args["value"] == 255
+
+    client.async_send_command.reset_mock()
+
+    # Test turning off
+    await hass.services.async_call(
+        "fan",
+        "turn_off",
+        {"entity_id": FAN_ENTITY},
+        blocking=True,
+    )
+
+    assert len(client.async_send_command.call_args_list) == 1
+    args = client.async_send_command.call_args[0][0]
+    assert args["command"] == "node.set_value"
+    assert args["nodeId"] == 17
+    assert args["valueId"] == {
+        "commandClassName": "Multilevel Switch",
+        "commandClass": 38,
+        "endpoint": 0,
+        "property": "targetValue",
+        "propertyName": "targetValue",
+        "metadata": {
+            "label": "Target value",
+            "max": 99,
+            "min": 0,
+            "type": "number",
+            "readable": True,
+            "writeable": True,
+            "label": "Target value",
+        },
+    }
+    assert args["value"] == 0
+
+    client.async_send_command.reset_mock()
+
+    # Test speed update from value updated event
+    event = Event(
+        type="value updated",
+        data={
+            "source": "node",
+            "event": "value updated",
+            "nodeId": 17,
+            "args": {
+                "commandClassName": "Multilevel Switch",
+                "commandClass": 38,
+                "endpoint": 0,
+                "property": "currentValue",
+                "newValue": 99,
+                "prevValue": 0,
+                "propertyName": "currentValue",
+            },
+        },
+    )
+    node.receive_event(event)
+
+    state = hass.states.get(FAN_ENTITY)
+    assert state.state == "on"
+    assert state.attributes[ATTR_SPEED] == "high"
+
+    client.async_send_command.reset_mock()
+
+    event = Event(
+        type="value updated",
+        data={
+            "source": "node",
+            "event": "value updated",
+            "nodeId": 17,
+            "args": {
+                "commandClassName": "Multilevel Switch",
+                "commandClass": 38,
+                "endpoint": 0,
+                "property": "currentValue",
+                "newValue": 0,
+                "prevValue": 0,
+                "propertyName": "currentValue",
+            },
+        },
+    )
+    node.receive_event(event)
+
+    state = hass.states.get(FAN_ENTITY)
+    assert state.state == "off"
+    assert state.attributes[ATTR_SPEED] == "off"
diff --git a/tests/fixtures/zwave_js/in_wall_smart_fan_control_state.json b/tests/fixtures/zwave_js/in_wall_smart_fan_control_state.json
new file mode 100644
index 00000000000..fe5550a5424
--- /dev/null
+++ b/tests/fixtures/zwave_js/in_wall_smart_fan_control_state.json
@@ -0,0 +1,354 @@
+{
+    "nodeId": 17,
+    "index": 0,
+    "installerIcon": 1024,
+    "userIcon": 1024,
+    "status": 4,
+    "ready": true,
+    "deviceClass": {
+      "basic": "Routing Slave",
+      "generic": "Multilevel Switch",
+      "specific": "Fan Switch",
+      "mandatorySupportedCCs": [
+        "Basic",
+        "Multilevel Switch"
+      ],
+      "mandatoryControlCCs": []
+    },
+    "isListening": true,
+    "isFrequentListening": false,
+    "isRouting": true,
+    "maxBaudRate": 40000,
+    "isSecure": false,
+    "version": 4,
+    "isBeaming": true,
+    "manufacturerId": 99,
+    "productId": 12593,
+    "productType": 18756,
+    "firmwareVersion": "5.22",
+    "zwavePlusVersion": 1,
+    "nodeType": 0,
+    "roleType": 5,
+    "deviceConfig": {
+      "manufacturerId": 99,
+      "manufacturer": "GE/Jasco",
+      "label": "ZW4002",
+      "description": "In-Wall Smart Fan Control",
+      "devices": [
+        {
+          "productType": "0x4944",
+          "productId": "0x3131"
+        }
+      ],
+      "firmwareVersion": {
+        "min": "0.0",
+        "max": "255.255"
+      },
+      "associations": {},
+      "paramInformation": {
+        "_map": {}
+      }
+    },
+    "label": "ZW4002",
+    "neighbors": [
+      1,
+      2,
+      6,
+      8,
+      9,
+      10,
+      11,
+      14,
+      15,
+      16,
+      18,
+      19,
+      20,
+      21,
+      23,
+      26,
+      27,
+      30,
+      31,
+      33,
+      36,
+      37,
+      38,
+      39,
+      41,
+      42
+    ],
+    "interviewAttempts": 1,
+    "endpoints": [
+      {
+        "nodeId": 17,
+        "index": 0,
+        "installerIcon": 1024,
+        "userIcon": 1024
+      }
+    ],
+    "values": [
+      {
+        "commandClassName": "Multilevel Switch",
+        "commandClass": 38,
+        "endpoint": 0,
+        "property": "targetValue",
+        "propertyName": "targetValue",
+        "metadata": {
+          "type": "number",
+          "readable": true,
+          "writeable": true,
+          "min": 0,
+          "max": 99,
+          "label": "Target value"
+        }
+      },
+      {
+        "commandClassName": "Multilevel Switch",
+        "commandClass": 38,
+        "endpoint": 0,
+        "property": "duration",
+        "propertyName": "duration",
+        "metadata": {
+          "type": "duration",
+          "readable": true,
+          "writeable": true,
+          "label": "Transition duration"
+        }
+      },
+      {
+        "commandClassName": "Multilevel Switch",
+        "commandClass": 38,
+        "endpoint": 0,
+        "property": "currentValue",
+        "propertyName": "currentValue",
+        "metadata": {
+          "type": "number",
+          "readable": true,
+          "writeable": false,
+          "min": 0,
+          "max": 99,
+          "label": "Current value"
+        },
+        "value": 0
+      },
+      {
+        "commandClassName": "Multilevel Switch",
+        "commandClass": 38,
+        "endpoint": 0,
+        "property": "Up",
+        "propertyName": "Up",
+        "metadata": {
+          "type": "boolean",
+          "readable": true,
+          "writeable": true,
+          "label": "Perform a level change (Up)",
+          "ccSpecific": {
+            "switchType": 2
+          }
+        }
+      },
+      {
+        "commandClassName": "Multilevel Switch",
+        "commandClass": 38,
+        "endpoint": 0,
+        "property": "Down",
+        "propertyName": "Down",
+        "metadata": {
+          "type": "boolean",
+          "readable": true,
+          "writeable": true,
+          "label": "Perform a level change (Down)",
+          "ccSpecific": {
+            "switchType": 2
+          }
+        }
+      },
+      {
+        "commandClassName": "Scene Activation",
+        "commandClass": 43,
+        "endpoint": 0,
+        "property": "sceneId",
+        "propertyName": "sceneId",
+        "metadata": {
+          "type": "number",
+          "readable": true,
+          "writeable": true,
+          "min": 1,
+          "max": 255,
+          "label": "Scene ID"
+        }
+      },
+      {
+        "commandClassName": "Scene Activation",
+        "commandClass": 43,
+        "endpoint": 0,
+        "property": "dimmingDuration",
+        "propertyName": "dimmingDuration",
+        "metadata": {
+          "type": "any",
+          "readable": true,
+          "writeable": true,
+          "label": "Dimming duration"
+        }
+      },
+      {
+        "commandClassName": "Configuration",
+        "commandClass": 112,
+        "endpoint": 0,
+        "property": 3,
+        "propertyName": "Night Light",
+        "metadata": {
+          "type": "number",
+          "readable": true,
+          "writeable": true,
+          "valueSize": 1,
+          "min": 0,
+          "max": 255,
+          "default": 0,
+          "format": 1,
+          "allowManualEntry": false,
+          "states": {
+            "0": "LED on when switch is OFF",
+            "1": "LED on when switch is ON",
+            "2": "LED always off"
+          },
+          "label": "Night Light",
+          "description": "Defines the behavior of the blue LED",
+          "isFromConfig": true
+        },
+        "value": 0
+      },
+      {
+        "commandClassName": "Configuration",
+        "commandClass": 112,
+        "endpoint": 0,
+        "property": 4,
+        "propertyName": "Invert Switch",
+        "metadata": {
+          "type": "number",
+          "readable": true,
+          "writeable": true,
+          "valueSize": 1,
+          "min": 0,
+          "max": 255,
+          "default": 0,
+          "format": 1,
+          "allowManualEntry": false,
+          "states": {
+            "0": "No",
+            "1": "Yes"
+          },
+          "label": "Invert Switch",
+          "description": "Invert the ON/OFF Switch State",
+          "isFromConfig": true
+        },
+        "value": 0
+      },
+      {
+        "commandClassName": "Manufacturer Specific",
+        "commandClass": 114,
+        "endpoint": 0,
+        "property": "manufacturerId",
+        "propertyName": "manufacturerId",
+        "metadata": {
+          "type": "number",
+          "readable": true,
+          "writeable": false,
+          "min": 0,
+          "max": 65535,
+          "label": "Manufacturer ID"
+        },
+        "value": 99
+      },
+      {
+        "commandClassName": "Manufacturer Specific",
+        "commandClass": 114,
+        "endpoint": 0,
+        "property": "productType",
+        "propertyName": "productType",
+        "metadata": {
+          "type": "number",
+          "readable": true,
+          "writeable": false,
+          "min": 0,
+          "max": 65535,
+          "label": "Product type"
+        },
+        "value": 18756
+      },
+      {
+        "commandClassName": "Manufacturer Specific",
+        "commandClass": 114,
+        "endpoint": 0,
+        "property": "productId",
+        "propertyName": "productId",
+        "metadata": {
+          "type": "number",
+          "readable": true,
+          "writeable": false,
+          "min": 0,
+          "max": 65535,
+          "label": "Product ID"
+        },
+        "value": 12593
+      },
+      {
+        "commandClassName": "Version",
+        "commandClass": 134,
+        "endpoint": 0,
+        "property": "libraryType",
+        "propertyName": "libraryType",
+        "metadata": {
+          "type": "any",
+          "readable": true,
+          "writeable": false,
+          "label": "Library type"
+        },
+        "value": 3
+      },
+      {
+        "commandClassName": "Version",
+        "commandClass": 134,
+        "endpoint": 0,
+        "property": "protocolVersion",
+        "propertyName": "protocolVersion",
+        "metadata": {
+          "type": "any",
+          "readable": true,
+          "writeable": false,
+          "label": "Z-Wave protocol version"
+        },
+        "value": "4.54"
+      },
+      {
+        "commandClassName": "Version",
+        "commandClass": 134,
+        "endpoint": 0,
+        "property": "firmwareVersions",
+        "propertyName": "firmwareVersions",
+        "metadata": {
+          "type": "any",
+          "readable": true,
+          "writeable": false,
+          "label": "Z-Wave chip firmware versions"
+        },
+        "value": [
+          "5.22"
+        ]
+      },
+      {
+        "commandClassName": "Version",
+        "commandClass": 134,
+        "endpoint": 0,
+        "property": "hardwareVersion",
+        "propertyName": "hardwareVersion",
+        "metadata": {
+          "type": "any",
+          "readable": true,
+          "writeable": false,
+          "label": "Z-Wave chip hardware version"
+        }
+      }
+    ]
+  }
\ No newline at end of file