Cognomen Maehsong (Maehsong 
) , in the entire world, is an extremely rare surname. The cognomen Maehsong is habitual in South-eastern Asia, particularly Malaysia, where it is an extremely rare surname. More prevalently, Maehsong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Maehsong | Malaysia, United States, Thailand |