Globally, สุทธิศาสตร์ (สุทธิศาสตร์ 
) is a very rare principally male, but very seldom girly first name. The first name สุทธิศาสตร์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare predominantly masculine, but very infrequently feminine name. More prevalently, สุทธิศาสตร์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| สุทธิศาสตร์ | Thailand |