In the entire world, Gaiya (Gaiya 
, Гайя 
) is quite a rare epicene first name. The forename Gaiya is characteristic of Nigeria, where it is quite a rare epicene name, Tanzania, where it is a very rare feminine name, and Russia, where it is an extremely rare epicene name. Not in comparison with a country's population, the name is most common in Nigeria, India, and Tanzania. Also, Gaiya is the last name as well as the forename.