Surname เหมรัตน์ (เหมรัตน์ 
, Hemarat 
, Hemrat 
) , globally, is a rare last name. The cognomen เหมรัตน์ is habitual in Thailand, where it is quite a rare surname, and India, where it is an extremely rare surname. Likewise, เหมรัตน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เหมรัตน์ | Thailand |
| Hemarat | India, Thailand |
| Hemrat | United States, India, Thailand |