Family name Klaisanam (Klaisanam 
) , throughout the world, is a very rare cognomen. The cognomen Klaisanam is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Klaisanam | Thailand |
Mintra, Nittaya, Pridthanan, Duangjai, and Kiratikan