Family name Silangan (Silangan 
) , in all the world, is a rare last name. The last name Silangan is habitual in Philippines, where it is a rare surname, and the United States, where it is an extremely rare surname. Very seldom, Silangan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Silangan | United Kingdom, United States, Philippines |