Cognomen Suwansak (Suwansak 
) , globally, is a rare last name. The cognomen Suwansak is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Suwansak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suwansak | United States, Thailand |