Family name Pongwach (Pongwach 
) , all over the world, is a very rare last name. The family name Pongwach is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Pongwach is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pongwach | Thailand |