Last name แสงมูล (Sangmun 
, Sangmoon 
, แสงมูล ) , around the world, is a rare surname. The family name แสงมูล is habitual in Thailand, where it is a rare surname, China, where it is an extremely rare surname, and the United States. More frequently, แสงมูล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sangmun | United States, China, Thailand, South Korea |
| Sangmoon | Thailand, South Korea, China, Canada, United States |
| Sangmool, แสงมูล | Thailand |