Surname สุทธิมงคล (สุทธิมงคล 
, Susitthimongkhon , Sutthamongkhon ) , across the world, is a rare family name. The family name สุทธิมงคล is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, สุทธิมงคล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Susitthimongkhon, Sutthamongkhol, สุทธิมงคล, Sutthamongkhon | Thailand |
Suthamongkon, Suthisongkhror, Suttamongkol, Suttamongkon, Sutthamongkol, Sutthamongkon, Sutthimongkhon, Sutthimongkol, Sutthimongkon, Sutthongkham, Sutthongkhong, Suttimongkol, Suttisongthon, and Suttongkham