Throughout the world, สมรัตน์ (Somrat 
, สมรัตน์ ) is quite a common mostly masculine, but uncommonly feminine forename. The forename สมรัตน์ is characteristic of Oman, where it is quite a rare boy's name, Qatar, and Bangladesh, where it is quite a rare predominantly boy's, but very infrequently feminine name. In absolute terms, the name is most common in Bangladesh, Thailand, and India. Likewise, สมรัตน์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Somrat | Bangladesh, Thailand, Oman, India, Saudi Arabia |
| สมรัตน์ | Thailand |