Family name พรวนัช (พรวนัช 
) , all over the world, is an extremely rare last name. The surname พรวนัช is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more frequently, พรวนัช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พรวนัช | Thailand |