Recorded 1912–2025 · United States
Arlyn was most popular in 1934, when 75 American babies were given the name — ranking #1,424 that year. In 2025 it ranked #5,471, with 52 births. Across 1880–2025 the Social Security Administration has recorded 4,525 people named Arlyn.
Arlyn first appears in Social Security Administration records in 1912, which makes it about 113 years old as a recorded American name. It has been recorded in 114 of the 114 years since.
The Social Security Administration has recorded 4,525 American births named Arlyn between 1880 and 2025. That is recorded US births, not a world population — it counts people issued a Social Security number at birth in the United States. Of those, roughly 3,073 are estimated to be alive today.
52 American babies were named Arlyn in 2025, ranking #5,471 that year.
Arlyn is holding steady. Across 2021–2025 it averaged 53 births a year, against 55 a year across 2011–2015 — a change of -4% over the decade.
Measured on recorded births. American births overall have fallen since 2007, so most established names lose births over any recent decade — a name can shed births and still hold its rank. Compare the rank above, which is measured against the other names of the same year.
Across the whole record Arlyn is a unisex name — 51.8% of the 4,525 Americans given it were girls and 48.2% were boys. It changed hands: since 1989 it has gone mainly to girls, having gone mainly to boys before that. In births since 2016 it is 76% girls and 24% boys.
Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.
Roughly 3,073 Americans named Arlyn are alive today — 68% of everyone ever recorded with the name. The median is 30 years old, and half are between 15 and 65. That is a wide band, the mark of a name in steady use across generations rather than a passing fashion.
An estimate, not a count. Recorded births are carried forward through the Social Security Administration’s 2023 period life table, by age and sex. That table describes mortality in one recent year, so it credits the oldest cohorts with today’s survival rather than the harsher rates they actually lived through — the further back a name peaked, the more this will overstate how many remain. It counts people issued a Social Security number at birth, not immigrants who arrived later.
How much more common the name is in each state than across the country as a whole.
See Arlyn on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org