Family name Yia (Yia 
, เยียร์ 
, เยี้ย) , in all the world, is quite a common last name. The family name Yia is habitual in Malaysia, where it is quite a common surname, Lesotho, where it is quite a rare surname, and Myanmar, where it is a rare surname. Not in comparison with a country's population, it is commonest in South-eastern Asia, particularly Malaysia, Myanmar, and Indonesia. Very seldom, Yia is the forename as well as the last name.