diff --git a/homeassistant/components/whois/sensor.py b/homeassistant/components/whois/sensor.py
index c3b115de60a..6333139e540 100644
--- a/homeassistant/components/whois/sensor.py
+++ b/homeassistant/components/whois/sensor.py
@@ -64,7 +64,7 @@ def _ensure_timezone(timestamp: datetime | None) -> datetime | None:
 SENSORS: tuple[WhoisSensorEntityDescription, ...] = (
     WhoisSensorEntityDescription(
         key="admin",
-        name="Admin",
+        translation_key="admin",
         icon="mdi:account-star",
         entity_category=EntityCategory.DIAGNOSTIC,
         entity_registry_enabled_default=False,
@@ -72,35 +72,35 @@ SENSORS: tuple[WhoisSensorEntityDescription, ...] = (
     ),
     WhoisSensorEntityDescription(
         key="creation_date",
-        name="Created",
+        translation_key="creation_date",
         device_class=SensorDeviceClass.TIMESTAMP,
         entity_category=EntityCategory.DIAGNOSTIC,
         value_fn=lambda domain: _ensure_timezone(domain.creation_date),
     ),
     WhoisSensorEntityDescription(
         key="days_until_expiration",
-        name="Days until expiration",
+        translation_key="days_until_expiration",
         icon="mdi:calendar-clock",
         native_unit_of_measurement=UnitOfTime.DAYS,
         value_fn=_days_until_expiration,
     ),
     WhoisSensorEntityDescription(
         key="expiration_date",
-        name="Expires",
+        translation_key="expiration_date",
         device_class=SensorDeviceClass.TIMESTAMP,
         entity_category=EntityCategory.DIAGNOSTIC,
         value_fn=lambda domain: _ensure_timezone(domain.expiration_date),
     ),
     WhoisSensorEntityDescription(
         key="last_updated",
-        name="Last updated",
+        translation_key="last_updated",
         device_class=SensorDeviceClass.TIMESTAMP,
         entity_category=EntityCategory.DIAGNOSTIC,
         value_fn=lambda domain: _ensure_timezone(domain.last_updated),
     ),
     WhoisSensorEntityDescription(
         key="owner",
-        name="Owner",
+        translation_key="owner",
         icon="mdi:account",
         entity_category=EntityCategory.DIAGNOSTIC,
         entity_registry_enabled_default=False,
@@ -108,7 +108,7 @@ SENSORS: tuple[WhoisSensorEntityDescription, ...] = (
     ),
     WhoisSensorEntityDescription(
         key="registrant",
-        name="Registrant",
+        translation_key="registrant",
         icon="mdi:account-edit",
         entity_category=EntityCategory.DIAGNOSTIC,
         entity_registry_enabled_default=False,
@@ -116,7 +116,7 @@ SENSORS: tuple[WhoisSensorEntityDescription, ...] = (
     ),
     WhoisSensorEntityDescription(
         key="registrar",
-        name="Registrar",
+        translation_key="registrar",
         icon="mdi:store",
         entity_category=EntityCategory.DIAGNOSTIC,
         entity_registry_enabled_default=False,
@@ -124,7 +124,7 @@ SENSORS: tuple[WhoisSensorEntityDescription, ...] = (
     ),
     WhoisSensorEntityDescription(
         key="reseller",
-        name="Reseller",
+        translation_key="reseller",
         icon="mdi:store",
         entity_category=EntityCategory.DIAGNOSTIC,
         entity_registry_enabled_default=False,
diff --git a/homeassistant/components/whois/strings.json b/homeassistant/components/whois/strings.json
index 553293962cd..c28c079784d 100644
--- a/homeassistant/components/whois/strings.json
+++ b/homeassistant/components/whois/strings.json
@@ -16,5 +16,36 @@
     "abort": {
       "already_configured": "[%key:common::config_flow::abort::already_configured_service%]"
     }
+  },
+  "entity": {
+    "sensor": {
+      "admin": {
+        "name": "Admin"
+      },
+      "creation_date": {
+        "name": "Created"
+      },
+      "days_until_expiration": {
+        "name": "Days until expiration"
+      },
+      "expiration_date": {
+        "name": "Expires"
+      },
+      "last_updated": {
+        "name": "Last updated"
+      },
+      "owner": {
+        "name": "Owner"
+      },
+      "registrant": {
+        "name": "Registrant"
+      },
+      "registrar": {
+        "name": "Registrar"
+      },
+      "reseller": {
+        "name": "Reseller"
+      }
+    }
   }
 }
diff --git a/tests/components/whois/snapshots/test_sensor.ambr b/tests/components/whois/snapshots/test_sensor.ambr
index d0bcff20b0e..464af13c7c8 100644
--- a/tests/components/whois/snapshots/test_sensor.ambr
+++ b/tests/components/whois/snapshots/test_sensor.ambr
@@ -37,7 +37,7 @@
     'original_name': 'Admin',
     'platform': 'whois',
     'supported_features': 0,
-    'translation_key': None,
+    'translation_key': 'admin',
     'unique_id': 'home-assistant.io_admin',
     'unit_of_measurement': None,
   })
@@ -107,7 +107,7 @@
     'original_name': 'Created',
     'platform': 'whois',
     'supported_features': 0,
-    'translation_key': None,
+    'translation_key': 'creation_date',
     'unique_id': 'home-assistant.io_creation_date',
     'unit_of_measurement': None,
   })
@@ -182,7 +182,7 @@
     'original_name': 'Days until expiration',
     'platform': 'whois',
     'supported_features': 0,
-    'translation_key': None,
+    'translation_key': 'days_until_expiration',
     'unique_id': 'home-assistant.io_days_until_expiration',
     'unit_of_measurement': <UnitOfTime.DAYS: 'd'>,
   })
@@ -252,7 +252,7 @@
     'original_name': 'Expires',
     'platform': 'whois',
     'supported_features': 0,
-    'translation_key': None,
+    'translation_key': 'expiration_date',
     'unique_id': 'home-assistant.io_expiration_date',
     'unit_of_measurement': None,
   })
@@ -322,7 +322,7 @@
     'original_name': 'Last updated',
     'platform': 'whois',
     'supported_features': 0,
-    'translation_key': None,
+    'translation_key': 'last_updated',
     'unique_id': 'home-assistant.io_last_updated',
     'unit_of_measurement': None,
   })
@@ -392,7 +392,7 @@
     'original_name': 'Owner',
     'platform': 'whois',
     'supported_features': 0,
-    'translation_key': None,
+    'translation_key': 'owner',
     'unique_id': 'home-assistant.io_owner',
     'unit_of_measurement': None,
   })
@@ -462,7 +462,7 @@
     'original_name': 'Registrant',
     'platform': 'whois',
     'supported_features': 0,
-    'translation_key': None,
+    'translation_key': 'registrant',
     'unique_id': 'home-assistant.io_registrant',
     'unit_of_measurement': None,
   })
@@ -532,7 +532,7 @@
     'original_name': 'Registrar',
     'platform': 'whois',
     'supported_features': 0,
-    'translation_key': None,
+    'translation_key': 'registrar',
     'unique_id': 'home-assistant.io_registrar',
     'unit_of_measurement': None,
   })
@@ -602,7 +602,7 @@
     'original_name': 'Reseller',
     'platform': 'whois',
     'supported_features': 0,
-    'translation_key': None,
+    'translation_key': 'reseller',
     'unique_id': 'home-assistant.io_reseller',
     'unit_of_measurement': None,
   })
@@ -672,7 +672,7 @@
     'original_name': 'Last updated',
     'platform': 'whois',
     'supported_features': 0,
-    'translation_key': None,
+    'translation_key': 'last_updated',
     'unique_id': 'home-assistant.io_last_updated',
     'unit_of_measurement': None,
   })