diff --git a/homeassistant/components/tailscale/__init__.py b/homeassistant/components/tailscale/__init__.py
index b23eea7a06c..7388eec22df 100644
--- a/homeassistant/components/tailscale/__init__.py
+++ b/homeassistant/components/tailscale/__init__.py
@@ -52,7 +52,8 @@ class TailscaleEntity(CoordinatorEntity):
         super().__init__(coordinator=coordinator)
         self.entity_description = description
         self.device_id = device.device_id
-        self._attr_name = f"{device.hostname} {description.name}"
+        self.friendly_name = device.name.split(".")[0]
+        self._attr_name = f"{self.friendly_name} {description.name}"
         self._attr_unique_id = f"{device.device_id}_{description.key}"
 
     @property
@@ -70,6 +71,6 @@ class TailscaleEntity(CoordinatorEntity):
             identifiers={(DOMAIN, device.device_id)},
             manufacturer="Tailscale Inc.",
             model=device.os,
-            name=device.hostname,
+            name=self.friendly_name,
             sw_version=device.client_version,
         )
diff --git a/tests/components/tailscale/test_binary_sensor.py b/tests/components/tailscale/test_binary_sensor.py
index 9caeb7b8eba..feb34c6d8a3 100644
--- a/tests/components/tailscale/test_binary_sensor.py
+++ b/tests/components/tailscale/test_binary_sensor.py
@@ -28,7 +28,7 @@ async def test_tailscale_binary_sensors(
     assert entry.unique_id == "123456_update_available"
     assert entry.entity_category == EntityCategory.DIAGNOSTIC
     assert state.state == STATE_ON
-    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "Frencks-iPhone Client"
+    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "frencks-iphone Client"
     assert state.attributes.get(ATTR_DEVICE_CLASS) == BinarySensorDeviceClass.UPDATE
     assert ATTR_ICON not in state.attributes
 
@@ -43,7 +43,7 @@ async def test_tailscale_binary_sensors(
     assert state.state == STATE_OFF
     assert (
         state.attributes.get(ATTR_FRIENDLY_NAME)
-        == "Frencks-iPhone Supports Hairpinning"
+        == "frencks-iphone Supports Hairpinning"
     )
     assert state.attributes.get(ATTR_ICON) == "mdi:wan"
     assert ATTR_DEVICE_CLASS not in state.attributes
@@ -55,7 +55,7 @@ async def test_tailscale_binary_sensors(
     assert entry.unique_id == "123456_client_supports_ipv6"
     assert entry.entity_category == EntityCategory.DIAGNOSTIC
     assert state.state == STATE_OFF
-    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "Frencks-iPhone Supports IPv6"
+    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "frencks-iphone Supports IPv6"
     assert state.attributes.get(ATTR_ICON) == "mdi:wan"
     assert ATTR_DEVICE_CLASS not in state.attributes
 
@@ -66,7 +66,7 @@ async def test_tailscale_binary_sensors(
     assert entry.unique_id == "123456_client_supports_pcp"
     assert entry.entity_category == EntityCategory.DIAGNOSTIC
     assert state.state == STATE_OFF
-    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "Frencks-iPhone Supports PCP"
+    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "frencks-iphone Supports PCP"
     assert state.attributes.get(ATTR_ICON) == "mdi:wan"
     assert ATTR_DEVICE_CLASS not in state.attributes
 
@@ -77,7 +77,7 @@ async def test_tailscale_binary_sensors(
     assert entry.unique_id == "123456_client_supports_pmp"
     assert entry.entity_category == EntityCategory.DIAGNOSTIC
     assert state.state == STATE_OFF
-    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "Frencks-iPhone Supports NAT-PMP"
+    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "frencks-iphone Supports NAT-PMP"
     assert state.attributes.get(ATTR_ICON) == "mdi:wan"
     assert ATTR_DEVICE_CLASS not in state.attributes
 
@@ -88,7 +88,7 @@ async def test_tailscale_binary_sensors(
     assert entry.unique_id == "123456_client_supports_udp"
     assert entry.entity_category == EntityCategory.DIAGNOSTIC
     assert state.state == STATE_ON
-    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "Frencks-iPhone Supports UDP"
+    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "frencks-iphone Supports UDP"
     assert state.attributes.get(ATTR_ICON) == "mdi:wan"
     assert ATTR_DEVICE_CLASS not in state.attributes
 
@@ -99,7 +99,7 @@ async def test_tailscale_binary_sensors(
     assert entry.unique_id == "123456_client_supports_upnp"
     assert entry.entity_category == EntityCategory.DIAGNOSTIC
     assert state.state == STATE_OFF
-    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "Frencks-iPhone Supports UPnP"
+    assert state.attributes.get(ATTR_FRIENDLY_NAME) == "frencks-iphone Supports UPnP"
     assert state.attributes.get(ATTR_ICON) == "mdi:wan"
     assert ATTR_DEVICE_CLASS not in state.attributes
 
@@ -109,7 +109,7 @@ async def test_tailscale_binary_sensors(
     assert device_entry.identifiers == {(DOMAIN, "123456")}
     assert device_entry.manufacturer == "Tailscale Inc."
     assert device_entry.model == "iOS"
-    assert device_entry.name == "Frencks-iPhone"
+    assert device_entry.name == "frencks-iphone"
     assert device_entry.entry_type == dr.DeviceEntryType.SERVICE
     assert device_entry.sw_version == "1.12.3-td91ea7286-ge1bbbd90c"
     assert (