Last name Ahai (Ahai 
, 阿海 , Ахай 
) , across the world, is a rare family name. The surname Ahai is habitual in Kazakhstan, where it is a rare surname, Malaysia, and Indonesia, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in China, Indonesia, and Kazakhstan. More frequently, Ahai is the forename as well as the last name.