Surname โพธิสม (Phosom 
, โพธิสม , Pothasom ) , in the world, is a rare family name. The cognomen โพธิสม is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, โพธิสม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phosom | India, Thailand |
| Pothasom, โพธิสม | Thailand |