Cognomen หยำ (Yam 
, หยำ) , in the world, is a widespread surname. The family name หยำ is habitual in Hong Kong, where it is quite a common surname, Bermuda, and Malaysia (explore the name in all countries). Not in comparison with a country's population, it is commonest in India, Mexico, and Malaysia. Likewise, หยำ is the forename as well as the last name.