Family name Sug-Ongan (Sug-Ongan 
) , globally, is a very rare cognomen. The cognomen Sug-Ongan is habitual in South-eastern Asia, particularly Philippines, where it is a very rare surname. Parts of the name also exists independently as a last name Ongan.
| VARIANT | COUNTRY |
|---|---|
| Sug-Ongan | Philippines |