Cognomen เดือนแสง (Duenaeng 
, เดือนแสง , Dounsaeng ) , worldwide, is a very rare surname. The surname เดือนแสง is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, เดือนแสง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Duenaeng, เดือนแสง, Duansaeng, Dounsaeng | Thailand |