Recorded 1999–2025 · United States
Finnigan was most popular in 2016, when 103 American babies were given the name — ranking #3,464 that year. In 2025 it ranked #5,600, with 50 births. Across 1880–2025 the Social Security Administration has recorded 1,353 people named Finnigan.
Finnigan first appears in Social Security Administration records in 1999, which makes it about 26 years old as a recorded American name. It has been recorded in 27 of the 27 years since.
The Social Security Administration has recorded 1,353 American births named Finnigan 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 1,341 are estimated to be alive today.
50 American babies were named Finnigan in 2025, ranking #5,600 that year.
Finnigan is holding steady. Across 2021–2025 it averaged 59 births a year, against 65 a year across 2011–2015 — a change of -10% 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 Finnigan is a boy’s name — 0.0% of the 1,353 Americans given it were girls and 100.0% were boys. In births since 2016 it is 0% girls and 100% 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 1,341 Americans named Finnigan are alive today — 99% of everyone ever recorded with the name. The median is 10 years old, and half are between 6 and 15. That is a narrow band because Finnigan 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.
See Finnigan on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org