Family name สุสวัสดิ์ (สุสวัสดิ์ 
, Susawat 
, Sousawat ) , across the world, is a very rare surname. The surname สุสวัสดิ์ is characteristic of Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Very seldom, สุสวัสดิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุสวัสดิ์, Soosawadi, Sousawat | Thailand |
| Susawat | Thailand, India |