Around the globe, Willu (Willu 
) is a very rare primarily feminine, but very seldom masculine forename. The forename Willu is characteristic of South-eastern Asia, particularly Indonesia, where it is a very rare girly name. Much less frequently, Willu is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Willu | Indonesia, Philippines, Brazil, United States, Nigeria |