Cognomen Lertbusarakam (Lertbusarakam 
) , in all the world, is a very rare family name. The cognomen Lertbusarakam is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Lertbusarakam | Thailand |
Khemupsorn, and Punlert