Family name แสงมงคล (แสงมงคล 
, Suengmongkhon , Sangkhamongkhon ) , all around the world, is a rare surname. The surname แสงมงคล is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, แสงมงคล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suengmongkhon, Sangkhamongkhon, แสงมงคล, Sangmongkol | Thailand |
Saengmongkhol, Saengmongkhon, Saengmongkol, Saengmongkon, Sangmongkhon, and Sangmongkon