Throughout the world, Nieri (Nieri 
) is a rare gender-neutral forename. The first name Nieri is habitual in Italy, where it is a rare dominantly girly, but seldom masculine name, Peru, where it is a very rare epicene name, and Philippines, where it is a very rare dominantly feminine, but infrequently masculine name. More frequently, Nieri is the last name as well as the forename.