Cognomen Khwanput (Khwanput 
) , in the world, is a very rare family name. The surname Khwanput is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khwanput | Thailand |
Wanpen, Kotchanon, Watcharit, and Phattharaphume