Family name หยู (Yu 
, หยู 
) , across the world, is a prevalent last name. The surname หยู 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). Measured by absolute frequency, it most frequently occurs in China, Mongolia, and Myanmar. Much less frequently, หยู is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yu | Malaysia, China, Myanmar, Mongolia, Hong Kong |
| หยู | Thailand |