Family name Ongath (Ongath 
) , around the world, is an extremely rare surname. Much more prevalently, Ongath is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ongath | Cyprus, Laos, South Korea, Thailand, United States |
Vongsay, Sengmany, Phetmany, Ketsouvanhas, and Homsombath