Family name Мучнік (Мучнік 
) , throughout the world, is a very rare surname. The surname Мучнік is habitual in Eastern Europe, particularly Ukraine, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Мучнік | Ukraine |
|
мучнік олександр геннадійович Ukrainian human rights activist (born 1954), UA (b. 1954) |
|