Throughout the world, Kunnajak (Kunnajak 
) is an extremely rare unknown gender given name. Predominantly, Kunnajak is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kunnajak | United States, Thailand |
Sununta, Chaiyot, Chaleena, Phrachaiyot, and Phra Chaiyot