Cognomen Kunnak (Kunnak 
) , worldwide, is a very rare surname. The surname Kunnak is characteristic of Thailand, where it is a very rare surname, Cambodia, and India, where it is an extremely rare surname. Much less frequently, Kunnak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kunnak | Cambodia, India, Philippines, Thailand |
Atigrun, Tidarat, and Patcharaporn