Cognomen Масопуст (Masopust 
, Масопуст 
) , worldwide, is quite a rare last name. The cognomen Масопуст is habitual in Czechia, where it is quite a common surname, Austria, where it is quite a rare surname, and Switzerland, where it is a rare surname. In absolute terms, it is commonest in Czechia, the United States, and Austria.
| VARIANT | COUNTRY |
|---|---|
| Masopust | Czechia, Germany, Switzerland, United States, Austria |
| Масопуст | Russia, Ukraine |