Aileen is a female given name and is of Irish origin. It means light. Pronounced as ay-LEEN / sometimes eye-LEEN, the name is currently in the top 500 of NameChef Most Popular Baby Names and in the top 1000 of U.S birth chart of the year 2019.
Aileen is a girl's name.
ay-LEEN / sometimes eye-LEEN
(Or listen to the pronunciation from https://www.pronouncenames.com/search?name=aileen)