Family name Masjon (Masjon 
) , globally, is a very rare cognomen. The surname Masjon is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname, and Thailand. Likewise, Masjon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Masjon | Malaysia, Thailand, Morocco |
|
john andrew masjon NL (b. 1817) |
|
| j. a. masjon (1817-1858) (b. 1817) |
|