Cognomen เบญจพิชญ์ (เบญจพิชญ์ 
) , in all the world, is an extremely rare surname. The cognomen เบญจพิชญ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, เบญจพิชญ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เบญจพิชญ์ | Thailand |