Family name Uak (Uak 
, อวก ) , globally, is a rare last name. The cognomen Uak is habitual in South-eastern Asia, particularly Myanmar, where it is a rare surname, Indonesia, where it is a very rare surname, and Thailand, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Indonesia, Myanmar, and China. Also, Uak is the forename as well as the last name.