diff --git a/homeassistant/components/smartthings/manifest.json b/homeassistant/components/smartthings/manifest.json
index 17aababd641..a30bcaee30a 100644
--- a/homeassistant/components/smartthings/manifest.json
+++ b/homeassistant/components/smartthings/manifest.json
@@ -24,6 +24,9 @@
     {
       "hostname": "hub*",
       "macaddress": "286D97*"
+    },
+    {
+      "hostname": "samsung-*"
     }
   ],
   "documentation": "https://www.home-assistant.io/integrations/smartthings",
diff --git a/homeassistant/components/smartthings/strings.json b/homeassistant/components/smartthings/strings.json
index 6a1d69ec866..625f8786259 100644
--- a/homeassistant/components/smartthings/strings.json
+++ b/homeassistant/components/smartthings/strings.json
@@ -23,6 +23,9 @@
       "user": "[%key:common::config_flow::initiate_flow::account%]"
     },
     "step": {
+      "oauth_discovery": {
+        "description": "Home Assistant has found a SmartThings device on your network. Press **Submit** to continue setting up SmartThings."
+      },
       "pick_implementation": {
         "data": {
           "implementation": "[%key:common::config_flow::data::implementation%]"
diff --git a/homeassistant/generated/dhcp.py b/homeassistant/generated/dhcp.py
index e650435a2e0..d3dde435250 100644
--- a/homeassistant/generated/dhcp.py
+++ b/homeassistant/generated/dhcp.py
@@ -813,6 +813,10 @@ DHCP: Final[list[dict[str, str | bool]]] = [
         "hostname": "hub*",
         "macaddress": "286D97*",
     },
+    {
+        "domain": "smartthings",
+        "hostname": "samsung-*",
+    },
     {
         "domain": "smlight",
         "registered_devices": True,
diff --git a/tests/components/smartthings/test_config_flow.py b/tests/components/smartthings/test_config_flow.py
index 02011ac897b..253e0ec2793 100644
--- a/tests/components/smartthings/test_config_flow.py
+++ b/tests/components/smartthings/test_config_flow.py
@@ -11,11 +11,12 @@ from homeassistant.components.smartthings.const import (
     CONF_SUBSCRIPTION_ID,
     DOMAIN,
 )
-from homeassistant.config_entries import SOURCE_USER, ConfigEntryState
+from homeassistant.config_entries import SOURCE_DHCP, SOURCE_USER, ConfigEntryState
 from homeassistant.const import CONF_TOKEN
 from homeassistant.core import HomeAssistant
 from homeassistant.data_entry_flow import FlowResultType
 from homeassistant.helpers import config_entry_oauth2_flow
+from homeassistant.helpers.service_info.dhcp import DhcpServiceInfo
 
 from tests.common import MockConfigEntry
 from tests.test_util.aiohttp import AiohttpClientMocker
@@ -614,3 +615,89 @@ async def test_migration_no_cloud(
 
     assert result["type"] is FlowResultType.ABORT
     assert result["reason"] == "cloud_not_enabled"
+
+
+@pytest.mark.usefixtures("current_request_with_host", "use_cloud")
+async def test_dhcp_flow(
+    hass: HomeAssistant,
+    hass_client_no_auth: ClientSessionGenerator,
+    aioclient_mock: AiohttpClientMocker,
+    mock_smartthings: AsyncMock,
+    mock_setup_entry: AsyncMock,
+) -> None:
+    """Check a full flow initiated by DHCP discovery."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": SOURCE_DHCP},
+        data=DhcpServiceInfo(
+            ip="192.168.0.2", hostname="Samsung-Washer", macaddress="88571dc3ed7d"
+        ),
+    )
+
+    assert result["type"] is FlowResultType.FORM
+    assert result["step_id"] == "oauth_discovery"
+
+    result = await hass.config_entries.flow.async_configure(result["flow_id"], {})
+
+    state = config_entry_oauth2_flow._encode_jwt(
+        hass,
+        {
+            "flow_id": result["flow_id"],
+            "redirect_uri": "https://example.com/auth/external/callback",
+        },
+    )
+
+    assert result["type"] is FlowResultType.EXTERNAL_STEP
+    assert result["url"] == (
+        "https://api.smartthings.com/oauth/authorize"
+        "?response_type=code&client_id=CLIENT_ID"
+        "&redirect_uri=https://example.com/auth/external/callback"
+        f"&state={state}"
+        "&scope=r:devices:*+w:devices:*+x:devices:*+r:hubs:*+"
+        "r:locations:*+w:locations:*+x:locations:*+r:scenes:*+"
+        "x:scenes:*+r:rules:*+w:rules:*+sse+r:installedapps+"
+        "w:installedapps"
+    )
+
+    client = await hass_client_no_auth()
+    resp = await client.get(f"/auth/external/callback?code=abcd&state={state}")
+    assert resp.status == HTTPStatus.OK
+    assert resp.headers["content-type"] == "text/html; charset=utf-8"
+
+    aioclient_mock.clear_requests()
+    aioclient_mock.post(
+        "https://auth-global.api.smartthings.com/oauth/token",
+        json={
+            "refresh_token": "mock-refresh-token",
+            "access_token": "mock-access-token",
+            "token_type": "Bearer",
+            "expires_in": 82806,
+            "scope": "r:devices:* w:devices:* x:devices:* r:hubs:* "
+            "r:locations:* w:locations:* x:locations:* "
+            "r:scenes:* x:scenes:* r:rules:* w:rules:* sse",
+            "access_tier": 0,
+            "installed_app_id": "5aaaa925-2be1-4e40-b257-e4ef59083324",
+        },
+    )
+
+    result = await hass.config_entries.flow.async_configure(result["flow_id"])
+
+    assert result["type"] is FlowResultType.CREATE_ENTRY
+
+
+@pytest.mark.usefixtures("current_request_with_host", "use_cloud")
+async def test_duplicate_entry_dhcp(
+    hass: HomeAssistant, mock_config_entry: MockConfigEntry
+) -> None:
+    """Test duplicate entry is not able to set up."""
+    mock_config_entry.add_to_hass(hass)
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": SOURCE_DHCP},
+        data=DhcpServiceInfo(
+            ip="192.168.0.2", hostname="Samsung-Washer", macaddress="88571dc3ed7d"
+        ),
+    )
+
+    assert result["type"] is FlowResultType.ABORT
+    assert result["reason"] == "already_configured"