Surname หมื่นแสง (Muansang 
, หมื่นแสง, Muansaeng ) , around the globe, is a rare cognomen. The family name หมื่นแสง is habitual in Thailand, where it is a rare surname, Myanmar, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, หมื่นแสง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Muansang | Myanmar, Thailand, India |
| Muansaeng, Muensang | Thailand |