Family name Уу (Уу 
) , all around the world, is a rare surname. The surname Уу is habitual in Kyrgyzstan, where it is a rare surname, Russia, where it is a very rare surname, and China, where it is an extremely rare surname. Also, Уу is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Уу | Kyrgyzstan, China, Russia |