Cognomen Wilia (Wilia 
) , across the world, is a rare last name. The surname Wilia is habitual in Indonesia, where it is a rare surname, Morocco, where it is a very rare surname, and Poland. Likewise, Wilia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wilia | Poland, Brazil, Morocco, Indonesia, Philippines |