Cognomen Маиор (Maior 
, Маиор 
) , throughout the world, is quite a common family name. The cognomen Маиор is habitual in Romania, where it is quite a rare surname, Portugal, and Angola. In absolute terms, it is the most numerous in Brazil, Romania, and Portugal. Much less frequently, Маиор is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Maior | Brazil, Portugal, United States, Romania, Angola |
| Маиор | Russia |