Around the world, Illescas (Illescas 
) is an extremely rare gender-neutral given name. More frequently, Illescas is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Illescas | Peru, Argentina, Spain, Mexico, Guatemala |
|
alonso de illescas African Maroon leader, VE (b. 1528) |
|
| bernabé jiménez de illescas Spanish baroque painter, ES (b. 1608) |
|
|
| sixt illescas Spanish architect (1903-1986), ES (b. 1903) |
|