Cognomen 乐旺 (乐旺 
) , across the world, is a very rare family name. The cognomen 乐旺 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 乐旺 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 乐旺 | China |