Surname หยู่ (Yu 
, หยู่) , all over the world, is a prevalent family name. The cognomen หยู่ is characteristic of Mongolia, where it is a prevalent surname, Cayman Islands, where it is a widespread surname, and Hong Kong (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in China, Mongolia, and Myanmar. Very seldom, หยู่ is the forename as well as the last name.