Surname Saeng-Uthai (Saeng-Uthai 
) , across the world, is an extremely rare cognomen. The surname Saeng-Uthai is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Parts of the name also exists independently as a first name Saeng, and a first name Uthai.
| VARIANT | COUNTRY |
|---|---|
| Saeng-Uthai | Thailand |