Surname Choonhakarn (Choonhakarn 
) , across the world, is an extremely rare cognomen. Much more frequently, Choonhakarn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Choonhakarn | Thailand |
| charoen choonhakarn researcher |
|
Nongnual, Sricharoen, and Thanahiranroj