diff --git a/homeassistant/components/august/__init__.py b/homeassistant/components/august/__init__.py
index 570ec5983fe..e8df7e1072d 100644
--- a/homeassistant/components/august/__init__.py
+++ b/homeassistant/components/august/__init__.py
@@ -21,6 +21,7 @@ from homeassistant.exceptions import (
     ConfigEntryNotReady,
     HomeAssistantError,
 )
+from homeassistant.helpers import device_registry as dr
 
 from .activity import ActivityStream
 from .const import DOMAIN, MIN_TIME_BETWEEN_DETAIL_UPDATES, PLATFORMS
@@ -283,12 +284,15 @@ class AugustData(AugustSubscriberMixin):
             device.device_id,
         )
 
-    def _get_device_name(self, device_id):
+    def get_device(self, device_id: str) -> Doorbell | Lock | None:
+        """Get a device by id."""
+        return self._locks_by_id.get(device_id) or self._doorbells_by_id.get(device_id)
+
+    def _get_device_name(self, device_id: str) -> str | None:
         """Return doorbell or lock name as August has it stored."""
-        if device_id in self._locks_by_id:
-            return self._locks_by_id[device_id].device_name
-        if device_id in self._doorbells_by_id:
-            return self._doorbells_by_id[device_id].device_name
+        if device := self.get_device(device_id):
+            return device.device_name
+        return None
 
     async def async_lock(self, device_id):
         """Lock the device."""
@@ -403,3 +407,15 @@ def _restore_live_attrs(lock_detail, attrs):
     """Restore the non-cache attributes after a cached update."""
     for attr, value in attrs.items():
         setattr(lock_detail, attr, value)
+
+
+async def async_remove_config_entry_device(
+    hass: HomeAssistant, config_entry: ConfigEntry, device_entry: dr.DeviceEntry
+) -> bool:
+    """Remove august config entry from a device if its no longer present."""
+    data: AugustData = hass.data[DOMAIN][config_entry.entry_id]
+    return not any(
+        identifier
+        for identifier in device_entry.identifiers
+        if identifier[0] == DOMAIN and data.get_device(identifier[1])
+    )
diff --git a/tests/components/august/mocks.py b/tests/components/august/mocks.py
index e419488becc..c93e6429f1c 100644
--- a/tests/components/august/mocks.py
+++ b/tests/components/august/mocks.py
@@ -1,7 +1,10 @@
 """Mocks for the august component."""
+from __future__ import annotations
+
 import json
 import os
 import time
+from typing import Any, Iterable
 from unittest.mock import AsyncMock, MagicMock, PropertyMock, patch
 
 from yalexs.activity import (
@@ -26,7 +29,9 @@ from yalexs.lock import Lock, LockDetail
 from yalexs.pubnub_async import AugustPubNub
 
 from homeassistant.components.august.const import CONF_LOGIN_METHOD, DOMAIN
+from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
+from homeassistant.core import HomeAssistant
 
 from tests.common import MockConfigEntry, load_fixture
 
@@ -76,9 +81,13 @@ async def _mock_setup_august(
 
 
 async def _create_august_with_devices(
-    hass, devices, api_call_side_effects=None, activities=None, pubnub=None
-):
-    entry, api_instance = await _create_august_api_with_devices(
+    hass: HomeAssistant,
+    devices: Iterable[LockDetail | DoorbellDetail],
+    api_call_side_effects: dict[str, Any] | None = None,
+    activities: list[Any] | None = None,
+    pubnub: AugustPubNub | None = None,
+) -> ConfigEntry:
+    entry, _ = await _create_august_api_with_devices(
         hass, devices, api_call_side_effects, activities, pubnub
     )
     return entry
diff --git a/tests/components/august/test_init.py b/tests/components/august/test_init.py
index 320461ca6e9..56113832d23 100644
--- a/tests/components/august/test_init.py
+++ b/tests/components/august/test_init.py
@@ -17,6 +17,9 @@ from homeassistant.const import (
     STATE_ON,
 )
 from homeassistant.exceptions import HomeAssistantError
+from homeassistant.helpers import device_registry as dr, entity_registry as er
+from homeassistant.helpers.entity_registry import EntityRegistry
+from homeassistant.setup import async_setup_component
 
 from tests.common import MockConfigEntry
 from tests.components.august.mocks import (
@@ -318,3 +321,46 @@ async def test_load_unload(hass):
 
     await hass.config_entries.async_unload(config_entry.entry_id)
     await hass.async_block_till_done()
+
+
+async def remove_device(ws_client, device_id, config_entry_id):
+    """Remove config entry from a device."""
+    await ws_client.send_json(
+        {
+            "id": 5,
+            "type": "config/device_registry/remove_config_entry",
+            "config_entry_id": config_entry_id,
+            "device_id": device_id,
+        }
+    )
+    response = await ws_client.receive_json()
+    return response["success"]
+
+
+async def test_device_remove_devices(hass, hass_ws_client):
+    """Test we can only remove a device that no longer exists."""
+    assert await async_setup_component(hass, "config", {})
+    august_operative_lock = await _mock_operative_august_lock_detail(hass)
+    config_entry = await _create_august_with_devices(hass, [august_operative_lock])
+    registry: EntityRegistry = er.async_get(hass)
+    entity = registry.entities["lock.a6697750d607098bae8d6baa11ef8063_name"]
+
+    device_registry = dr.async_get(hass)
+    device_entry = device_registry.async_get(entity.device_id)
+    assert (
+        await remove_device(
+            await hass_ws_client(hass), device_entry.id, config_entry.entry_id
+        )
+        is False
+    )
+
+    dead_device_entry = device_registry.async_get_or_create(
+        config_entry_id=config_entry.entry_id,
+        identifiers={(DOMAIN, "remove-device-id")},
+    )
+    assert (
+        await remove_device(
+            await hass_ws_client(hass), dead_device_entry.id, config_entry.entry_id
+        )
+        is True
+    )