Surname Pichaitam (Pichaitam 
) , in all the world, is a very rare family name. The last name Pichaitam is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pichaitam | Thailand |
Thom, Somkiat, Tanakrit, Kanokkorn, and Khajornsiri