Cognomen Masciuch (Masciuch 
) , in the world, is a very rare family name. The surname Masciuch is habitual in Northern America, particularly Canada, where it is a very rare surname, and the United States, where it is an extremely rare surname. More prevalently, Masciuch is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Masciuch | United States, Poland, Canada |