Girls' name · since 1956
Siobhan
Since 1956, U.S. Social Security records show 7,399 babies named Siobhan, peaking in 1980. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #1,998 of 72,339
- all-time among girls
- #2,082 of 17,297
- 2025 SSA year
- 7,399
- born since 1956
- 1980s
- peak decade
7,399 babies have been named Siobhan since 1956, making it today's #2082 girls' name.
Siobhan has 7,399 recorded births among girls since 1956, per the U.S. Social Security Administration, ranked #2082 as of the latest data, more common than 88% of girls, busiest in the 1980s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1956 to 2025.
- #1,998 of 72,339 all-time among girls
- #2,082 of 17,297 2025 SSA year
- 7,399 born since 1956
- 1980s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Siobhan ranks #1,998 of 72,339 girls' names by all-time recorded births (highest first) and #2,082 of 17,297 among girls' names in 2025. 7,399 born since 1956, peaking in the 1980s.
- #1,998 of 72,339
- all-time among girls
- #2,082 of 17,297
- 2025 SSA year
- 7,399
- born since 1956
- 1980s
- peak decade
Siobhan's 7,399 recorded births place it above 97.23% of the 72,339 girls names in the full SSA archive.
23 jurisdictions carry state-level records, led by New York.
How Siobhan compares
7,399 Top 11% higher than 89% of 17,297 names currently given to girls
Based on all-time total births among currently-ranked girls 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
Siobhan's all-time total is 20x the median girls name, and Olivia still leads by a wide margin.
| Metric | Siobhan | Median girls name (Kyann) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 7,399 | 376 | 567,345 |
| Peak-year births | 282 | 21 | 19,840 |
Siobhan's usage pattern, beyond the headline number
Splitting Siobhan's full recorded timeline at 1991, 41% of its total births fall in the more recent half of the record versus 59% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 2017, with just 33 recorded births -- worth weighing against the 1980 peak of 282 to see the full range of the name's swing in popularity.
Siobhan popularity over time
Annual U.S. births registered with the Social Security Administration · 1956–2025
- Peak year (1980)
- 282
- Annual births at peak, across 70 years of records
Siobhan by decade
1980s is the heaviest window (2,086 births, 28% of the file).
1980s was Siobhan's strongest decade.
2,086 babies received the name during that ten-year window, about 28% of all-time use.
Siobhan births by decade
Total births in each ten-year window
- 1950s 265
1950s
265 births
- 1960s
1960s
869 births
- 1970s
1970s
996 births
- 1980s
1980s
2,086 births
- 1990s
1990s
1,334 births
- 2000s 758
2000s
758 births
- 2010s 548
2010s
548 births
- 2020s 543
2020s
543 births
What this shows Peak: 1980s at 2,086 births (28% of all-time use).
How Siobhan compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Siobhan's total volume
Siobhan by state
Where Siobhan concentrates geographically, total births since 1956
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | New York | | 1,481 | 20.0% |
| #2 | Massachusetts | | 809 | 10.9% |
| #3 | California | | 793 | 10.7% |
| #4 | New Jersey | | 387 | 5.2% |
| #5 | Pennsylvania | | 355 | 4.8% |
| #6 | Illinois | | 296 | 4.0% |
| #7 | Texas | | 167 | 2.3% |
| #8 | Florida | | 121 | 1.6% |
1,481 of 7,399 births nationwide. Compared to a flat distribution across 23 reporting states.
Siobhan appears in 23 states. Explore state details →
Frequently Asked Questions
How popular is the name Siobhan? ▼
Where does Siobhan sit in the SSA name archive? ▼
When was Siobhan most popular? ▼
Where is Siobhan most popular? ▼
How long has the name Siobhan been used? ▼
What names are similar to Siobhan? ▼
What to do with Siobhan's data
- Siobhan's decade-level peak was the 1980s (2,086 total births); usage has since declined to 543 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- New York records the most Siobhans (1,481 births) -- see the full state breakdown if geography matters to your decision. New York names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Siobhan
Nearby Names Like Siobhan
Names with a similar sound, spelling, or feel to Siobhan
Compare Siobhan side by side: Siobhan vs Siomara Siobhan vs Siona Siobhan vs Sion
Related Names
Names with a similar popularity rank to Siobhan
Nationwide names with similar peak year or record span
Two nationwide peer axes for Siobhan: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1980)
Similar record span (~69 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, 1956–2025 (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 Siobhan 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.