Onna vs Onnie
American parents have registered 1,736 Onnies since 1880, against 656 Onnas. But in 2025 it was Onna that was commoner, 12 babies to fewer than five.
Babies given each name, 1880–2025
Onna Onnie
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 130 years in which either name was published, Onnie for 80 years and Onna for 50 years. The lead changed hands 11 times.
Side by side
| Onna | Onnie | |
|---|---|---|
| Total US births | 656 | 1,736 |
| Most in one year | 33 | 56 |
| Babies in 2025 | 12 | under 5 |
| Estimated living today | 620 | 420 |
| Median age today | 21 | 73 |
| Peak year | 2015 | 1922 |
| Best rank | 4,295th girls | 1,403rd girls |
| Rank in 2025 | 8,362nd | unranked |
| First recorded | 1927 | 1885 |
| Girls / boys | 656 / 0 | 1,079 / 657 |
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 Onnies alive today are over 73; half the Onnas are over 21. That is 52 years between them: two names in use at the same time, worn by two different generations.
Compare something else
Social Security Administration birth records, 1880–2025, public domain. Full histories: Onna and Onnie.