Around the world, ธมรัตน์ (ธมรัตน์ 
) is a very rare mostly masculine, but seldom female first name. The given name ธมรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare principally masculine, but very infrequently female name. Also, ธมรัตน์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| ธมรัตน์ | Thailand |