Cognomen مازو (Mazo 
, Mazou 
, Mazu ) , around the globe, is a common family name. The cognomen مازو is characteristic of Colombia, where it is quite a common surname, Paraguay, and Philippines, where it is quite a rare surname. Not in comparison with a country's population, it most frequently occurs in Colombia, Philippines, and the Democratic Republic of the Congo. Very seldom, مازو is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mazo | Spain, Colombia, Philippines, Democratic Republic of the Congo, Argentina |
| Mazou | Algeria, France, Democratic Republic of the Congo, Cameroon, Argentina |
| Mazu | Spain, France, Colombia, Democratic Republic of the Congo, Argentina |
| مازو | Egypt, Sudan, Iran |