Family name Upong (Upong 
) , around the world, is a rare cognomen. The last name Upong is habitual in South-eastern Asia, particularly Malaysia, where it is a rare surname, Philippines, where it is a very rare surname, and Thailand. Not in comparison with a country's population, it most frequently occurs in Philippines, Indonesia, and Nigeria. Much less frequently, Upong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Upong | Philippines, Thailand, Indonesia, Nigeria, Malaysia |