Family name U-Seng (U-Seng 
) , globally, is an extremely rare last name. The surname U-Seng is habitual in South-eastern Asia, particularly Malaysia, where it is an extremely rare surname, and Thailand. Very seldom, U-Seng is the forename as well as the last name. Parts of the name also exists independently as a first name U, and a last name Seng.
| VARIANT | COUNTRY |
|---|---|
| U-Seng | United States, Malaysia, Thailand |