diff --git a/homeassistant/components/fritz/sensor.py b/homeassistant/components/fritz/sensor.py
index e2df5dc6e8b..8aa48b216cb 100644
--- a/homeassistant/components/fritz/sensor.py
+++ b/homeassistant/components/fritz/sensor.py
@@ -20,6 +20,7 @@ from homeassistant.const import (
     EntityCategory,
     UnitOfDataRate,
     UnitOfInformation,
+    UnitOfTemperature,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
@@ -142,6 +143,13 @@ def _retrieve_link_attenuation_received_state(
     return status.attenuation[1] / 10  # type: ignore[no-any-return]
 
 
+def _retrieve_cpu_temperature_state(
+    status: FritzStatus, last_value: float | None
+) -> float:
+    """Return the first CPU temperature value."""
+    return status.get_cpu_temperatures()[0]  # type: ignore[no-any-return]
+
+
 @dataclass(frozen=True, kw_only=True)
 class FritzSensorEntityDescription(SensorEntityDescription, FritzEntityDescription):
     """Describes Fritz sensor entity."""
@@ -274,6 +282,16 @@ SENSOR_TYPES: tuple[FritzSensorEntityDescription, ...] = (
         value_fn=_retrieve_link_attenuation_received_state,
         is_suitable=lambda info: info.wan_enabled and info.connection == DSL_CONNECTION,
     ),
+    FritzSensorEntityDescription(
+        key="cpu_temperature",
+        translation_key="cpu_temperature",
+        native_unit_of_measurement=UnitOfTemperature.CELSIUS,
+        device_class=SensorDeviceClass.TEMPERATURE,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        state_class=SensorStateClass.MEASUREMENT,
+        value_fn=_retrieve_cpu_temperature_state,
+        is_suitable=lambda info: True,
+    ),
 )
 
 
diff --git a/homeassistant/components/fritz/strings.json b/homeassistant/components/fritz/strings.json
index 75ce6800aab..87ee28196ad 100644
--- a/homeassistant/components/fritz/strings.json
+++ b/homeassistant/components/fritz/strings.json
@@ -174,6 +174,9 @@
       },
       "max_kb_s_sent": {
         "name": "Max connection upload throughput"
+      },
+      "cpu_temperature": {
+        "name": "CPU Temperature"
       }
     }
   },
diff --git a/tests/components/fritz/conftest.py b/tests/components/fritz/conftest.py
index fa92fa37c04..017328ea0eb 100644
--- a/tests/components/fritz/conftest.py
+++ b/tests/components/fritz/conftest.py
@@ -27,6 +27,26 @@ class FritzServiceMock(Service):
         self.serviceId = serviceId
 
 
+class FritzResponseMock:
+    """Response mocking."""
+
+    def json(self):
+        """Mock json method."""
+        return {"CPUTEMP": "69,68,67"}
+
+
+class FritzHttpMock:
+    """FritzHttp mocking."""
+
+    def __init__(self) -> None:
+        """Init Mocking class."""
+        self.router_url = "http://fritz.box"
+
+    def call_url(self, *args, **kwargs):
+        """Mock call_url method."""
+        return FritzResponseMock()
+
+
 class FritzConnectionMock:
     """FritzConnection mocking."""
 
@@ -39,6 +59,7 @@ class FritzConnectionMock:
             srv: FritzServiceMock(serviceId=srv, actions=actions)
             for srv, actions in services.items()
         }
+        self.http_interface = FritzHttpMock()
         LOGGER.debug("-" * 80)
         LOGGER.debug("FritzConnectionMock - services: %s", self.services)
 
diff --git a/tests/components/fritz/snapshots/test_sensor.ambr b/tests/components/fritz/snapshots/test_sensor.ambr
index 4efae5951e8..ac437b28d99 100644
--- a/tests/components/fritz/snapshots/test_sensor.ambr
+++ b/tests/components/fritz/snapshots/test_sensor.ambr
@@ -825,3 +825,59 @@
     'state': '3.4',
   })
 # ---
+# name: test_sensor_setup[sensor.mock_title_cpu_temperature-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': <EntityCategory.DIAGNOSTIC: 'diagnostic'>,
+    'entity_id': 'sensor.mock_title_cpu_temperature',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+      'sensor': dict({
+        'suggested_display_precision': 1,
+      }),
+    }),
+    'original_device_class': <SensorDeviceClass.TEMPERATURE: 'temperature'>,
+    'original_icon': None,
+    'original_name': 'CPU Temperature',
+    'platform': 'fritz',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': 'cpu_temperature',
+    'unique_id': '1C:ED:6F:12:34:11-cpu_temperature',
+    'unit_of_measurement': <UnitOfTemperature.CELSIUS: '°C'>,
+  })
+# ---
+# name: test_sensor_setup[sensor.mock_title_cpu_temperature-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'temperature',
+      'friendly_name': 'Mock Title CPU Temperature',
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+      'unit_of_measurement': <UnitOfTemperature.CELSIUS: '°C'>,
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.mock_title_cpu_temperature',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '69',
+  })
+# ---