Eileene vs Eiley
American parents have registered 550 Eileys since 1880, against 548 Eileenes. Eiley is still ahead, with 42 babies in 2025.
Babies given each name, 1880–2025
Eileene Eiley
Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.
Who was ahead
Of the 71 years in which either name was published, Eileene for 46 years and Eiley for 25 years. The lead changed hands once.
Side by side
| Eileene | Eiley | |
|---|---|---|
| Total US births | 548 | 550 |
| Most in one year | 31 | 42 |
| Babies in 2025 | under 5 | 42 |
| Estimated living today | 150 | 550 |
| Median age today | 74 | 8 |
| Peak year | 1925 | 2024 |
| Best rank | 1,466th girls | 3,639th girls |
| Rank in 2025 | unranked | 3,577th |
| First recorded | 1911 | 2001 |
| Girls / boys | 548 / 0 | 550 / 0 |
A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.
Which name is older
Half of the Eileenes alive today are over 74; half the Eileys are over 8. That is 66 years between them: two names in use at the same time, worn by two different generations.
Compare something else
Related comparisons
Social Security Administration birth records, 1880–2025, public domain. Full histories: Eileene and Eiley.