Family name พุทธวัช (พุทธวัช 
) , all around the world, is a very rare surname. The cognomen พุทธวัช is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, พุทธวัช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พุทธวัช | Thailand |