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