Boys' name · since 1973
Fionn
682 babies named Fionn in U.S. Social Security records since 1973, with the highest year being 2018. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #6,550 of 45,481
- all-time among boys
- #4,178 of 13,930
- 2025 SSA year
- 682
- born since 1973
- 2010s
- peak decade
Fionn currently ranks #4178 among boys' names in America, with 682 babies recorded since 1973.
Social Security Administration records show Fionn recorded 682 times among boys since 1973, holding rank #4178 nationally today, ahead of 70% of boys, peaking in the 2010s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1973 to 2025.
- #6,550 of 45,481 all-time among boys
- #4,178 of 13,930 2025 SSA year
- 682 born since 1973
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Fionn ranks #6,550 of 45,481 boys' names by all-time recorded births (highest first) and #4,178 of 13,930 among boys' names in 2025. 682 born since 1973, peaking in the 2010s.
- #6,550 of 45,481
- all-time among boys
- #4,178 of 13,930
- 2025 SSA year
- 682
- born since 1973
- 2010s
- peak decade
Fionn's 682 recorded births place it above 85.58% of the 45,481 boys names in the full SSA archive.
The state file records this name in 4 jurisdictions, led by California.
How Fionn compares
682 Top 38% higher than 62% of 13,930 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Fionn's all-time total is 85% above the median boys name, and Liam still leads by a wide margin.
| Metric | Fionn | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 682 | 369 | 358,536 |
| Peak-year births | 40 | 34 | 22,252 |
Fionn's usage pattern, beyond the headline number
Divide Fionn's SSA record in two at 2011 and the more recent half accounts for 65% of all births, the earlier half the remaining 35%, consistent with a name still gaining ground rather than fading. Its calmest year was 1973, with only 5 births recorded -- set against the 2018 peak of 40, that's the full swing in one name's fortunes.
Fionn popularity over time
Annual U.S. births registered with the Social Security Administration · 1973–2025
- Peak year (2018)
- 40
- Annual births at peak, across 53 years of records
Fionn by decade
2010s is the heaviest window (297 births, 44% of the file).
2010s was Fionn's strongest decade.
297 babies received the name during that ten-year window, about 44% of all-time use.
Fionn births by decade
Total births in each ten-year window
- 1970s 5
1970s
5 births
- 1990s 19
1990s
19 births
- 2000s
2000s
192 births
- 2010s
2010s
297 births
- 2020s
2020s
169 births
What this shows Peak: 2010s at 297 births (44% of all-time use).
How Fionn compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Fionn's total volume
Fionn by state
Where Fionn concentrates geographically, total births since 1973
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 52 | 7.6% |
| #2 | New York | | 51 | 7.5% |
| #3 | Massachusetts | | 16 | 2.3% |
| #4 | Pennsylvania | | 5 | 0.7% |
52 of 682 births nationwide. Compared to a flat distribution across 4 reporting states.
Frequently Asked Questions
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What to do with Fionn's data
- Fionn's usage has stayed within range of its 2010s decade-level peak (297 total births) through the 2020s (169) -- a comparatively stable name, not a fading trend.
- California records the most Fionns (52 births) -- see the full state breakdown if geography matters to your decision. California names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Fionn
Nearby Names Like Fionn
Names with a similar sound, spelling, or feel to Fionn
Compare Fionn side by side: Fionn vs Fiore Fionn vs Fiori Fionn vs Fionnlagh
Related Names
Names with a similar popularity rank to Fionn
Nationwide names with similar peak year or record span
Two nationwide peer axes for Fionn: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2018)
Similar record span (~52 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1973–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Fionn draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.