Throughout the world, กุลนรัตน์ (กุลนรัตน์ 
) is a very rare mostly feminine, but uncommonly masculine forename. The given name กุลนรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare largely feminine, but uncommonly boy's name. More prevalently, กุลนรัตน์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| กุลนรัตน์ | Thailand |