Cognomen สัจพันธ์ (สัจพันธ์ 
) , throughout the world, is an extremely rare family name. The family name สัจพันธ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, สัจพันธ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สัจพันธ์ | Thailand |