Cognomen Mžyk (Mžyk 
) , around the world, is a very rare surname. The surname Mžyk is characteristic of Eastern Europe, particularly Czechia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Mžyk | Czechia |
|
josef mžyk 1944-, CZ (b. 1944) |
|
| ladislav mžyk Czech association football player (1944-2008), CZ (b. 1944) |
|