diff --git a/homeassistant/components/hassio/__init__.py b/homeassistant/components/hassio/__init__.py
index d391817f964..419e6865b69 100644
--- a/homeassistant/components/hassio/__init__.py
+++ b/homeassistant/components/hassio/__init__.py
@@ -222,6 +222,18 @@ async def async_start_addon(hass: HomeAssistant, slug: str) -> dict:
     return await hassio.send_command(command, timeout=60)
 
 
+@bind_hass
+@api_data
+async def async_restart_addon(hass: HomeAssistant, slug: str) -> dict:
+    """Restart add-on.
+
+    The caller of the function should handle HassioAPIError.
+    """
+    hassio = hass.data[DOMAIN]
+    command = f"/addons/{slug}/restart"
+    return await hassio.send_command(command, timeout=None)
+
+
 @bind_hass
 @api_data
 async def async_stop_addon(hass: HomeAssistant, slug: str) -> dict: