Cognomen Saeng Uthai (Saeng Uthai 
) , throughout the world, is a very rare surname. The family name Saeng Uthai is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Saeng Uthai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saeng Uthai | Thailand |