Last name พิชญาวุธ (พิชญาวุธ 
) , throughout the world, is a very rare family name. The cognomen พิชญาวุธ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, พิชญาวุธ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พิชญาวุธ | Thailand |