All over the world, กุลพันธ์รัตน์ (กุลพันธ์รัตน์ 
) is a very rare mostly girly, but seldom boy's forename. The first name กุลพันธ์รัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare principally feminine, but very infrequently male name. Much less frequently, กุลพันธ์รัตน์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| กุลพันธ์รัตน์ | Thailand |