In all the world, กุลสุ (Kunsu 
, กุลสุ 
) is a rare masculine forename. The first name กุลสุ is characteristic of South Korea, where it is a rare male name, and India, where it is an extremely rare boy's name. Likewise, กุลสุ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kunsu | Japan, China, South Korea, Ghana, India |
| กุลสุ | Thailand |