Alli
Recorded 1916–2025 · United States
Alli was most popular in 2011, when 205 American babies were given the name — ranking #2,125 that year. In 2025 it ranked #10,985, with 18 births. Across 1880–2025 the Social Security Administration has recorded 3,810 people named Alli.
Alli over time
How old is the name Alli?
Alli first appears in Social Security Administration records in 1916, which makes it about 109 years old as a recorded American name. It has been recorded in 44 of the 110 years since.
How many people are named Alli?
The Social Security Administration has recorded 3,810 American births named Alli 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 3,757 are estimated to be alive today.
How many babies were named Alli in 2025?
18 American babies were named Alli in 2025, ranking #10,985 that year.
Is Alli getting more or less popular?
Alli is falling. Across 2021–2025 it averaged 26 births a year, against 140 a year across 2011–2015 — a change of -81% 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.
Is Alli a boy’s or a girl’s name?
Across the whole record Alli is a girl’s name — 99.9% of the 3,810 Americans given it were girls and 0.1% were boys. In births since 2016 it is 100% girls and 0% 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.
How old is someone named Alli?
Roughly 3,757 Americans named Alli are alive today — 99% of everyone ever recorded with the name. The median is 20 years old, and half are between 15 and 27. That is a narrow band because Alli is a young name — it only became common recently, so almost everyone carrying it is still a child or a young adult.
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.
Where Alli is most concentrated
How much more common the name is in each state than across the country as a whole.
Explore further
See Alli on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org