In the entire world, กุลรัตน์ (กุลรัตน์ 
, Kullarat , Kunrat 
) is a rare dominantly feminine, but seldom boy's forename. The forename กุลรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare mostly feminine, but infrequently male name. Also, กุลรัตน์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kullarat, กุลรัตน์, Kulyarat | Thailand |
| Kunrat | Brazil, Nigeria, Indonesia, Thailand, India |
Gulrat, Gulyarat, Koollarut, Koolrat, Koonrath, Kularat, Kulharat, Kuliarat, Kullaratn, Kullatrap, Kullrat, Kulnarat, Kulnaratana, Kulrarat, Kulrat, Kulratada, Kulratana, Kulratn, Kulratt, Kunlarart, Kunlarat, Kunlarattal, Kunlatthon, Kunratat, Kunrath, Kuntarat, and Makulrat