Cognomen Inthalak (Inthalak 
) , in the world, is an extremely rare surname. The surname Inthalak is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much less frequently, Inthalak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Inthalak | United States, Thailand |
Waleewan, and Saengthong