diff --git a/homeassistant/components/knx/__init__.py b/homeassistant/components/knx/__init__.py
index cc713d1034c4e9..e8c237114b51ab 100644
--- a/homeassistant/components/knx/__init__.py
+++ b/homeassistant/components/knx/__init__.py
@@ -30,6 +30,7 @@
     CONF_PORT,
     CONF_TYPE,
     EVENT_HOMEASSISTANT_STOP,
+    SERVICE_RELOAD,
     Platform,
 )
 from homeassistant.core import Event, HomeAssistant, ServiceCall
@@ -312,6 +313,13 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         schema=SERVICE_KNX_EXPOSURE_REGISTER_SCHEMA,
     )
 
+    async def _reload_integration(call: ServiceCall) -> None:
+        """Reload the integration."""
+        await hass.config_entries.async_reload(entry.entry_id)
+        hass.bus.async_fire(f"event_{DOMAIN}_reloaded", context=call.context)
+
+    async_register_admin_service(hass, DOMAIN, SERVICE_RELOAD, _reload_integration)
+
     await register_panel(hass)
 
     return True
diff --git a/homeassistant/components/knx/services.yaml b/homeassistant/components/knx/services.yaml
index d95a15738722f2..0ad497a30a261c 100644
--- a/homeassistant/components/knx/services.yaml
+++ b/homeassistant/components/knx/services.yaml
@@ -106,3 +106,6 @@ exposure_register:
       default: false
       selector:
         boolean:
+reload:
+  name: Reload
+  description: Reload the KNX integration.
diff --git a/tests/components/knx/test_services.py b/tests/components/knx/test_services.py
index 5e6f856ee44413..5796eae8393e6c 100644
--- a/tests/components/knx/test_services.py
+++ b/tests/components/knx/test_services.py
@@ -1,7 +1,10 @@
 """Test KNX services."""
+from unittest.mock import patch
+
 import pytest
 from xknx.telegram.apci import GroupValueResponse, GroupValueWrite
 
+from homeassistant.components.knx import async_unload_entry as knx_async_unload_entry
 from homeassistant.const import STATE_OFF, STATE_ON
 from homeassistant.core import HomeAssistant
 
@@ -250,3 +253,24 @@ async def test_exposure_register(hass: HomeAssistant, knx: KNXTestKit) -> None:
     hass.states.async_set(test_entity, STATE_OFF, {test_attribute: 25})
     await knx.assert_telegram_count(1)
     await knx.assert_write(test_address, (25,))
+
+
+async def test_reload_service(
+    hass: HomeAssistant,
+    knx: KNXTestKit,
+) -> None:
+    """Test reload service."""
+    await knx.setup_integration({})
+
+    with patch(
+        "homeassistant.components.knx.async_unload_entry", wraps=knx_async_unload_entry
+    ) as mock_unload_entry, patch(
+        "homeassistant.components.knx.async_setup_entry"
+    ) as mock_setup_entry:
+        await hass.services.async_call(
+            "knx",
+            "reload",
+            blocking=True,
+        )
+        mock_unload_entry.assert_called_once()
+        mock_setup_entry.assert_called_once()