Family name สวาสดิ์มิตร (สวาสดิ์มิตร 
) , all around the world, is a very rare cognomen. The last name สวาสดิ์มิตร is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| สวาสดิ์มิตร | Thailand |