Family name Sombatkumrai (Sombatkumrai 
) , across the world, is a very rare cognomen. The surname Sombatkumrai is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sombatkumrai | Thailand |
Marisa, Somboon, Chayanin, and Ratanapron