Cognomen 乐杰 (乐杰 
, Lejie 
) , globally, is a rare family name. The surname 乐杰 is characteristic of China, where it is a very rare surname, Mexico, where it is an extremely rare surname, and Brazil. More frequently, 乐杰 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 乐杰 | China |
| Lejie | United States, Philippines, Democratic Republic of the Congo, India, China |