Family name สุทธิรส (สุทธิรส 
) , worldwide, is a very rare cognomen. The last name สุทธิรส is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, สุทธิรส is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุทธิรส | Thailand |