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 | Colombia, Philippines, Argentina, Spain, Democratic Republic of the Congo |
| Mazou | France, Argentina, Cameroon, Democratic Republic of the Congo, Algeria |
| Mazu | Colombia, France, Argentina, Spain, Democratic Republic of the Congo |
| مازو | Sudan, Egypt, Iran |