Cognomen Ongkian (Ongkian 
) , in the world, is a very rare family name. The cognomen Ongkian is habitual in South-eastern Asia, particularly Philippines, where it is a very rare surname. Very seldom, Ongkian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ongkian | Philippines |