Quick answer
Eileen is a girl name.
Pronunciation: English /aɪ.ˈlin/; English /ˈaɪ.lin/.
Meaning and history
Anglicized form of Eibhlín. It is also sometimes considered an Irish form of Helen. It first became popular in the English-speaking world outside of Ireland near the end of the 19th century.
Notes and context
Usage: irish, english