Around the globe, รัตนกาญจน์ (รัตนกาญจน์ 
, Rattanakarn , Ratanakan 
) is a rare largely girly, but uncommonly male forename. The forename รัตนกาญจน์ is characteristic of Thailand, where it is a rare dominantly female, but infrequently male name, and India, where it is an extremely rare epicene name. Also, รัตนกาญจน์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rattanakarn, รัตนกาญจน์ | Thailand |
| Ratanakan | United States, India, Thailand |