Cognomen ماساي (Masai 
, Masaai 
, Massai 
) , in the entire world, is a common last name. The cognomen ماساي is habitual in Kenya, where it is quite a common surname, Bolivia, where it is quite a rare surname, and Tanzania. In absolute terms, this name is the most popular in Kenya, Italy, and Tanzania. Also, ماساي is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Masai | Tanzania, Kenya, Bolivia, Japan, Italy |
| Masaai | United States, India, Thailand, Japan |
| Massai | Brazil, Tanzania, India, Cameroon, Italy |