diff --git a/homeassistant/components/fritz/common.py b/homeassistant/components/fritz/common.py
index 6364ada9fb2..5af4f0c2239 100644
--- a/homeassistant/components/fritz/common.py
+++ b/homeassistant/components/fritz/common.py
@@ -663,6 +663,14 @@ class AvmWrapper(FritzBoxTools):
             partial(self.get_wan_link_properties)
         )
 
+    async def async_ipv6_active(self) -> bool:
+        """Check ip an ipv6 is active on the WAn interface."""
+
+        def wrap_external_ipv6() -> str:
+            return str(self.fritz_status.external_ipv6)
+
+        return bool(await self.hass.async_add_executor_job(wrap_external_ipv6))
+
     async def async_get_connection_info(self) -> ConnectionInfo:
         """Return ConnectionInfo data."""
 
@@ -671,6 +679,7 @@ class AvmWrapper(FritzBoxTools):
             connection=link_properties.get("NewWANAccessType", "").lower(),
             mesh_role=self.mesh_role,
             wan_enabled=self.device_is_router,
+            ipv6_active=await self.async_ipv6_active(),
         )
         _LOGGER.debug(
             "ConnectionInfo for FritzBox %s: %s",
@@ -1011,3 +1020,4 @@ class ConnectionInfo:
     connection: str
     mesh_role: MeshRoles
     wan_enabled: bool
+    ipv6_active: bool
diff --git a/homeassistant/components/fritz/sensor.py b/homeassistant/components/fritz/sensor.py
index 0f3d8cb1ae0..821a0000a5e 100644
--- a/homeassistant/components/fritz/sensor.py
+++ b/homeassistant/components/fritz/sensor.py
@@ -66,6 +66,11 @@ def _retrieve_external_ip_state(status: FritzStatus, last_value: str) -> str:
     return status.external_ip  # type: ignore[no-any-return]
 
 
+def _retrieve_external_ipv6_state(status: FritzStatus, last_value: str) -> str:
+    """Return external ipv6 from device."""
+    return str(status.external_ipv6)
+
+
 def _retrieve_kb_s_sent_state(status: FritzStatus, last_value: str) -> float:
     """Return upload transmission rate."""
     return round(status.transmission_rate[0] / 1000, 1)  # type: ignore[no-any-return]
@@ -155,6 +160,13 @@ SENSOR_TYPES: tuple[FritzSensorEntityDescription, ...] = (
         icon="mdi:earth",
         value_fn=_retrieve_external_ip_state,
     ),
+    FritzSensorEntityDescription(
+        key="external_ipv6",
+        name="External IPv6",
+        icon="mdi:earth",
+        value_fn=_retrieve_external_ipv6_state,
+        is_suitable=lambda info: info.ipv6_active,
+    ),
     FritzSensorEntityDescription(
         key="device_uptime",
         name="Device Uptime",
diff --git a/tests/components/fritz/const.py b/tests/components/fritz/const.py
index 32f2211d16b..fb62e14bc6f 100644
--- a/tests/components/fritz/const.py
+++ b/tests/components/fritz/const.py
@@ -138,6 +138,7 @@ MOCK_FB_SERVICES: dict[str, dict] = {
             "NewUptime": 35307,
         },
         "GetExternalIPAddress": {"NewExternalIPAddress": "1.2.3.4"},
+        "X_AVM_DE_GetExternalIPv6Address": {"NewExternalIPv6Address": "fec0::1"},
     },
     "WANPPPConnection1": {
         "GetInfo": {
diff --git a/tests/components/fritz/test_sensor.py b/tests/components/fritz/test_sensor.py
index 2a3435210e7..117e9d31967 100644
--- a/tests/components/fritz/test_sensor.py
+++ b/tests/components/fritz/test_sensor.py
@@ -35,6 +35,10 @@ SENSOR_STATES: dict[str, dict[str, Any]] = {
         ATTR_STATE: "1.2.3.4",
         ATTR_ICON: "mdi:earth",
     },
+    "sensor.mock_title_external_ipv6": {
+        ATTR_STATE: "fec0::1",
+        ATTR_ICON: "mdi:earth",
+    },
     "sensor.mock_title_device_uptime": {
         # ATTR_STATE: "2022-02-05T17:46:04+00:00",
         ATTR_DEVICE_CLASS: SensorDeviceClass.TIMESTAMP,