Aileen
/aɪ.ˈlin/
Aileen is an Irish and Scottish form of Eileen, itself an anglicization of Eibhlín, an Irish form of Evelyn or possibly Helen. The Greek Helēnē root means “light” or “torch,” giving Aileen the meaning “bright” or “shining.”
The name has been in use in Ireland and Scotland for centuries, spreading to Scottish and Irish diaspora communities in the United States, Canada, and Australia during the 19th and 20th century emigrations.
Aileen peaked at No. 289 in 1926 with 534 births. In 2024 it ranks No. 718 with 390 births, part of the gentle Celtic name revival.
What the name Aileen means
The name is associated with Irish serial killer Aileen Wuornos, whose story was depicted in the 2003 film Monster.
This dark association has not prevented the name’s continued use, as most parents are more aware of the name’s Celtic charm than its most notorious bearer.
Three syllables—AY-leen—or two—EYE-leen—depending on accent. The name’s pronunciation varies between Irish and Scottish versions, with AY-leen common in Ireland and EYE-leen more common in Scottish usage.
Parents who choose Aileen over Eileen often prefer the Ai- spelling, which reads as slightly more Celtic and distinctive in American contexts.
Related names include Eileen, Eibhlín, Evelyn, and Aline—all sharing different threads of the same Irish/Scottish feminine tradition.
US popularity over time
Numerology and symbolism
Based on Pythagorean numerology — a traditional system linking name letters to numbers. Presented for cultural interest.
Famous people named Aileen
Aileen - similar names
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