Cognomen Phuangnuch (Phuangnuch 
) , throughout the world, is a very rare last name. The cognomen Phuangnuch is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname, and Cambodia. Very seldom, Phuangnuch is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phuangnuch | Cambodia, Thailand |