Cognomen Ilasa (Ilasa 
) , all over the world, is a rare surname. The last name Ilasa is characteristic of Ethiopia, where it is a very rare surname, Nigeria, where it is an extremely rare surname, and India. Likewise, Ilasa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ilasa | Nigeria, Ethiopia, United States, India, Spain |