Cognomen Phimkham (Phimkham 
) , around the world, is a very rare surname. The surname Phimkham is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Phimkham is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phimkham | Thailand, United States |