diff --git a/homeassistant/components/roku/entity.py b/homeassistant/components/roku/entity.py
index 17a39a17609..261d0c95445 100644
--- a/homeassistant/components/roku/entity.py
+++ b/homeassistant/components/roku/entity.py
@@ -1,6 +1,7 @@
 """Base Entity for Roku."""
 from __future__ import annotations
 
+from homeassistant.helpers.device_registry import CONNECTION_NETWORK_MAC
 from homeassistant.helpers.entity import DeviceInfo, EntityDescription
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
@@ -37,6 +38,14 @@ class RokuEntity(CoordinatorEntity):
 
         return DeviceInfo(
             identifiers={(DOMAIN, self._device_id)},
+            connections={
+                (CONNECTION_NETWORK_MAC, mac_address)
+                for mac_address in (
+                    self.coordinator.data.info.wifi_mac,
+                    self.coordinator.data.info.ethernet_mac,
+                )
+                if mac_address is not None
+            },
             name=self.coordinator.data.info.name,
             manufacturer=self.coordinator.data.info.brand,
             model=self.coordinator.data.info.model_name,
diff --git a/tests/components/roku/test_binary_sensor.py b/tests/components/roku/test_binary_sensor.py
index e4d9ccad675..d04e2db623b 100644
--- a/tests/components/roku/test_binary_sensor.py
+++ b/tests/components/roku/test_binary_sensor.py
@@ -68,6 +68,10 @@ async def test_roku_binary_sensors(
     device_entry = device_registry.async_get(entry.device_id)
     assert device_entry
     assert device_entry.identifiers == {(DOMAIN, UPNP_SERIAL)}
+    assert device_entry.connections == {
+        (dr.CONNECTION_NETWORK_MAC, "b0:a7:37:96:4d:fb"),
+        (dr.CONNECTION_NETWORK_MAC, "b0:a7:37:96:4d:fa"),
+    }
     assert device_entry.manufacturer == "Roku"
     assert device_entry.model == "Roku 3"
     assert device_entry.name == "My Roku 3"
@@ -154,6 +158,10 @@ async def test_rokutv_binary_sensors(
     device_entry = device_registry.async_get(entry.device_id)
     assert device_entry
     assert device_entry.identifiers == {(DOMAIN, "YN00H5555555")}
+    assert device_entry.connections == {
+        (dr.CONNECTION_NETWORK_MAC, "d8:13:99:f8:b0:c6"),
+        (dr.CONNECTION_NETWORK_MAC, "d4:3a:2e:07:fd:cb"),
+    }
     assert device_entry.manufacturer == "Onn"
     assert device_entry.model == "100005844"
     assert device_entry.name == '58" Onn Roku TV'
diff --git a/tests/components/roku/test_media_player.py b/tests/components/roku/test_media_player.py
index b35996eba44..55ffa3fe574 100644
--- a/tests/components/roku/test_media_player.py
+++ b/tests/components/roku/test_media_player.py
@@ -99,6 +99,10 @@ async def test_setup(hass: HomeAssistant, aioclient_mock: AiohttpClientMocker) -
     device_entry = device_registry.async_get(entry.device_id)
     assert device_entry
     assert device_entry.identifiers == {(DOMAIN, UPNP_SERIAL)}
+    assert device_entry.connections == {
+        (dr.CONNECTION_NETWORK_MAC, "b0:a7:37:96:4d:fb"),
+        (dr.CONNECTION_NETWORK_MAC, "b0:a7:37:96:4d:fa"),
+    }
     assert device_entry.manufacturer == "Roku"
     assert device_entry.model == "Roku 3"
     assert device_entry.name == "My Roku 3"
@@ -145,6 +149,10 @@ async def test_tv_setup(
     device_entry = device_registry.async_get(entry.device_id)
     assert device_entry
     assert device_entry.identifiers == {(DOMAIN, TV_SERIAL)}
+    assert device_entry.connections == {
+        (dr.CONNECTION_NETWORK_MAC, "d8:13:99:f8:b0:c6"),
+        (dr.CONNECTION_NETWORK_MAC, "d4:3a:2e:07:fd:cb"),
+    }
     assert device_entry.manufacturer == TV_MANUFACTURER
     assert device_entry.model == TV_MODEL
     assert device_entry.name == '58" Onn Roku TV'