Last name Хаун (Chaun 
, Хаун 
) , across the world, is a rare surname. The cognomen Хаун is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a rare surname, Myanmar, where it is a rare surname, and Thailand, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Malaysia, India, and Thailand. Also, Хаун is the forename as well as the last name.