Surname Sangthum (แสงธรรม 
, Sangthum ) , around the globe, is a rare last name. The cognomen Sangthum is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Also, Sangthum is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| แสงธรรม, Sangthum | Thailand |