Around the globe, Wainen (Wainer 
, Wainen 
) is quite a rare masculine first name. The first name Wainen is habitual in Costa Rica, where it is quite a rare boy's name, Italy, and the Dominican Republic, where it is a rare boy's name. Not in comparison with a country's population, it is the most numerous in Italy, Brazil, and Costa Rica. Also, Wainen is the last name as well as the forename.