Cognomen Chya (Chya 
, Чиа 
) , all over the world, is a rare surname. The family name Chya is habitual in Iraq, where it is quite a rare surname, Myanmar, where it is a rare surname, and Malaysia. Not in comparison with a country's population, it most frequently occurs in Iraq, Indonesia, and Myanmar. More prevalently, Chya is the forename as well as the last name.