Cognomen Irilus (Irilus 
) , throughout the world, is an extremely rare surname. The last name Irilus is characteristic of New Zealand, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and the United States. Much less frequently, Irilus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Irilus | New Zealand, Venezuela, United States |