All over the world, Aiyo (Aiyo 
) is a rare mostly female, but seldom boy's forename. The forename Aiyo is habitual in Japan, where it is a rare female name, Nigeria, where it is a very rare epicene name, and Pakistan, where it is a very rare male name. Not in comparison with a country's population, it most frequently occurs in Japan, Nigeria, and China. Very seldom, Aiyo is the last name as well as the forename.