Total births
7,399
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.
- #1931
- among girls today
- 7,399
- born since 1956
- 1980s
- peak decade
- 89%
- more common than other girls
7,399 babies have been named Siobhan since 1956, making it today's #1931 girls' name.
Siobhan has 7,399 recorded births among girls since 1956, per the U.S. Social Security Administration, ranked #1931 as of the latest data, more common than 89% 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.
- #1931 among girls today
- 7,399 born since 1956
- 1980s peak decade
- 89% more common than other girls
Data updated Jun 2026
The verdict
Siobhan is currently the #1931 girls' name in America, more common than 89% of girls - 7,399 born since 1956, peaking in the 1980s.
- #1931
- among girls today
- 7,399
- born since 1956
- 1980s
- peak decade
- 89%
- more common than other girls
Siobhan vs. every other girls name in current SSA rankings
#1931
of 17,726 girls in use
More common than 89% of names given to girls today.
1980s
Peak decade
28% of everyone ever named Siobhan was born in this single decade.
1980
Single peak year
282 babies were named Siobhan in 1980 - its busiest year on record.
How Siobhan compares
7,399 Top 11% higher than 89% of 17,726 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 19x the median girls name, and Olivia still leads by a wide margin.
| Metric | Siobhan | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 7,399 | 382 | 567,345 |
| Peak-year births | 282 | 48 | 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 at a glance
Outside the top 1,000Peak year
1980
Current rank
#1,931
Active since
1956
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
Total births in each ten-year window, peak vs trough at a glance
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 vs 15 similarly-sized girls names
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% |
New York share of Siobhan's total US births 20.0%
Even split
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? ▼
Since 1956, Social Security records show 7,399 babies named Siobhan. Today it holds rank #1931 among girls. Its busiest year on record was 1980, with 282 births.
When was Siobhan most popular? ▼
Siobhan was most popular in the 1980s decade with 2,086 total births. The single peak year was 1980.
Where is Siobhan most popular? ▼
The top states for the name Siobhan are New York (1,481 births), Massachusetts (809 births), California (793 births).
How long has the name Siobhan been used? ▼
The SSA has tracked Siobhan since 1956 -- 70 years through the most recent 2025 data.
What names are similar to Siobhan? ▼
Names with a similar sound or spelling include Siomara, Siona, Sion, Siobahn, and 4 more. These share a common prefix and are also used for girls.
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
- Weighing it against an alternative? Put two names side by side. Compare 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
Siomara Girl
716 births
Siona Girl
#7481 392 births
Sion Girl
#16218 85 births
Siobahn Girl
82 births
Sionna Girl
62 births
Compare Siobhan side by side: Siobhan vs Siomara Siobhan vs Siona Siobhan vs Sion
Related Names
Names with a similar popularity rank to Siobhan
Annaliese #1930
4,944 births · Peak 2005
Yasmeen #1932
6,184 births · Peak 1997
Tania #1929
28,891 births · Peak 1993
Brisa #1933
8,595 births · Peak 2010
Evana #1928
1,185 births · Peak 2024
Kailee #1934
12,925 births · Peak 2003
Audra #1927
25,590 births · Peak 1967
Briley #1935
6,618 births · Peak 2009
Data Sources
Data as of June 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).
Cite this page
NameAlmanac Editorial. "Siobhan: #1931 Girls' Name - 7,399 Births, Peak 1980." NameAlmanac. Accessed via https://namealmanac.com/name/siobhan. Licensed CC BY-SA 4.0.
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 June 2026.