All over the world, 盖恩 (Gain 
, Gayn 
, Gaen 
) is quite a rare unisex first name. The given name 盖恩 is habitual in the Democratic Republic of the Congo, where it is a rare boy's name, South Korea, where it is a rare feminine name, and India, where it is a rare unisex name. Measured by absolute frequency, this name is the most popular in India, the Democratic Republic of the Congo, and Indonesia. Much more prevalently, 盖恩 is the last name as well as the forename.