Cognomen Ilaji (Ilaji 
) , in the entire world, is a rare surname. The family name Ilaji is characteristic of Philippines, where it is a rare surname, Saudi Arabia, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. In absolute terms, it is commonest in Philippines, Saudi Arabia, and India. Very seldom, Ilaji is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ilaji | Saudi Arabia, Philippines, Nigeria, Pakistan, India |