Arlo vs Arlynn
American parents have registered 25,135 Arlos since 1880, against 661 Arlynns. Arlo is still ahead, with 2,514 babies in 2025.
Babies given each name, 1880–2025
Arlo Arlynn
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
Arlo has been the commoner name in every year either was published, 1899 to 2025. The lead has never changed hands.
The closest they came was 1961, when Arlo had 15 and Arlynn had 10.
Side by side
| Arlo | Arlynn | |
|---|---|---|
| Total US births | 25,135 | 661 |
| Most in one year | 2,574 | 25 |
| Babies in 2025 | 2,514 | 14 |
| Estimated living today | 23,000 | 560 |
| Median age today | 4 | 17 |
| Peak year | 2024 | 2018 |
| Best rank | 146th boys | 5,152nd girls |
| Rank in 2025 | 148th | 7,491st |
| First recorded | 1899 | 1917 |
| Girls / boys | 890 / 24,245 | 600 / 61 |
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 Arlynns alive today are over 17; half the Arlos are over 4. That is 13 years between them: two names in use at the same time, worn by two different generations.
Where each one is strongest
How much commoner the name is in that state than it is nationally, from births recorded since 1910.
Compare something else
Related comparisons
Social Security Administration birth records, 1880–2025, public domain. Full histories: Arlo and Arlynn.