Surname ยู่ (Yu 
, ยู่) , all over the world, is a prevalent family name. The family name ยู่ is habitual in Mongolia, where it is a prevalent surname, Cayman Islands, where it is a widespread surname, and Hong Kong (explore the name in all countries). In absolute terms, it most frequently occurs in China, Mongolia, and Myanmar. Very seldom, ยู่ is the forename as well as the last name.