Last name Muack (Muack 
) , all around the world, is a very rare surname. The surname Muack is characteristic of Latin America and the Caribbean, particularly Ecuador, where it is a very rare surname, Colombia, and Chile, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Latin America and the Caribbean, particularly Colombia, Ecuador, and Mexico. Very seldom, Muack is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Muack | Malaysia, Mexico, Ecuador, United States, Colombia |