Cognomen สุวัตน์ (Suwat 
, สุวัตน์ ) , in all the world, is a rare family name. The last name สุวัตน์ is habitual in Thailand, where it is a rare surname, Saudi Arabia, where it is a very rare surname, and Malaysia. Measured by absolute frequency, this name is the most popular in Thailand, Indonesia, and Saudi Arabia. Predominantly, สุวัตน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suwat | Thailand, Saudi Arabia, Indonesia, United States, China |
| สุวัตน์ | Thailand |