Family name Sarunjaruchai (Sarunjaruchai 
) , in all the world, is a very rare surname. The surname Sarunjaruchai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sarunjaruchai | Thailand |
Thanawat, Ingkarat, Ploypapus, and Thunyatorn