Cognomen Kerdruam (Kerdruam 
) , in the entire world, is a very rare family name. The family name Kerdruam is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kerdruam | Thailand |
Sayan, Teeratat, Preeyapat, and Narinyaphat