Cognomen Kowattanakul (Kowattanakul 
) , in all the world, is a very rare family name. The cognomen Kowattanakul is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kowattanakul | Thailand |
Wipa, Karoon, Kanokwan, and Kaweechart