Around the world, Leileen (Leileen 
) is a very rare feminine first name. The given name Leileen is habitual in Philippines, where it is a very rare feminine name, and China, where it is an extremely rare female name. Very seldom, Leileen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Leileen | China, United States, Philippines |