Family name Sonpuak (Sonpuak 
) , all over the world, is a very rare surname. The family name Sonpuak is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sonpuak | Thailand |
Sarawadee, Narongsak, Nutnareeda, Panachakorn, and Phongsakorn