Family name Yingsiwaphat (Yingsiwaphat 
) , globally, is a very rare surname. The family name Yingsiwaphat is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Yingsiwaphat | Thailand |
Patinun, Nattaya, Vorraphun, and Theeraphan