Cognomen Iljo (Iljo 
) , throughout the world, is a rare last name. The surname Iljo is characteristic of Southern Europe, particularly North Macedonia, where it is quite a common surname. Very seldom, Iljo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iljo | Belgium, India, United States, Croatia, North Macedonia |
|
iljo keisse Belgian cyclist, BE (b. 1982) |
|
| iljo van delsen badminton player, BE |
|