Cognomen Tongpunja (Tongpunja 
) , globally, is a very rare family name. The cognomen Tongpunja is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tongpunja | Thailand |
Somkid, Pingpun, Rungtiwa, and Phongsaphak