Globally, ธะรัตน์ (ธะรัตน์ 
) is a very rare unisex given name. The first name ธะรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare epicene name.
| VARIANT | COUNTRY |
|---|---|
| ธะรัตน์ | Thailand |
ศิริธรรม, and เพ็ชรประแดง