Surname Ileya (Ileya 
) , in all the world, is a rare family name. The cognomen Ileya is characteristic of Nigeria, where it is a very rare surname, Nicaragua, and the United States, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Nigeria, the United States, and India. Also, Ileya is the forename as well as the last name.