Total births
7,809
Boys' name · since 1957
Seamus
Since 1957, U.S. Social Security records show 7,809 babies named Seamus, peaking in 2008. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #1451
- among boys today
- 7,809
- born since 1957
- 2000s
- peak decade
- 90%
- more common than other boys
Yes -- Seamus is the #1451 most popular boys' name in the U.S. today, with 7,809 recorded since 1957.
Social Security Administration records show Seamus recorded 7,809 times among boys since 1957, holding rank #1451 nationally today, ahead of 90% of boys, peaking in the 2000s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1957 to 2025.
- #1451 among boys today
- 7,809 born since 1957
- 2000s peak decade
- 90% more common than other boys
Data updated Jun 2026
The verdict
Seamus is currently the #1451 boys' name in America, more common than 90% of boys - 7,809 born since 1957, peaking in the 2000s.
- #1451
- among boys today
- 7,809
- born since 1957
- 2000s
- peak decade
- 90%
- more common than other boys
Seamus vs. every other boys name in current SSA rankings
#1451
of 14,294 boys in use
More common than 90% of names given to boys today.
2000s
Peak decade
31% of everyone ever named Seamus was born in this single decade.
2008
Single peak year
298 babies were named Seamus in 2008 - its busiest year on record.
How Seamus compares
7,809 Top 10% higher than 90% of 14,294 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
Seamus's all-time total is 21x the median boys name, and Liam still leads by a wide margin.
| Metric | Seamus | Median boys name (Elchonon) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 7,809 | 367 | 358,536 |
| Peak-year births | 298 | 23 | 22,252 |
Seamus's usage pattern, beyond the headline number
Splitting Seamus's full recorded timeline at 1991, 87% of its total births fall in the more recent half of the record versus 13% in the earlier half -- usage has skewed toward the present, not a one-decade spike. Its quietest year on record was 1958, with just 6 recorded births -- worth weighing against the 2008 peak of 298 to see the full range of the name's swing in popularity.
Seamus at a glance
Outside the top 1,000Peak year
2008
Current rank
#1,451
Active since
1957
Seamus popularity over time
Annual U.S. births registered with the Social Security Administration · 1957–2025
- Peak year (2008)
- 298
- Annual births at peak, across 69 years of records
Seamus by decade
Total births in each ten-year window, peak vs trough at a glance
2000s was Seamus's strongest decade.
2,446 babies received the name during that ten-year window, about 31% of all-time use.
Seamus births by decade
Total births in each ten-year window
- 1950s 25
1950s
25 births
- 1960s 122
1960s
122 births
- 1970s 332
1970s
332 births
- 1980s 497
1980s
497 births
- 1990s
1990s
1,241 births
- 2000s
2000s
2,446 births
- 2010s
2010s
2,268 births
- 2020s 878
2020s
878 births
What this shows Peak: 2000s at 2,446 births (31% of all-time use).
How Seamus 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 Seamus's total volume
Seamus vs 15 similarly-sized boys names
Seamus by state
Where Seamus concentrates geographically, total births since 1957
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | New York | | 812 | 10.4% |
| #2 | Massachusetts | | 778 | 10.0% |
| #3 | California | | 680 | 8.7% |
| #4 | Pennsylvania | | 601 | 7.7% |
| #5 | Illinois | | 357 | 4.6% |
| #6 | New Jersey | | 275 | 3.5% |
| #7 | Ohio | | 220 | 2.8% |
| #8 | Washington | | 168 | 2.2% |
New York share of Seamus's total US births 10.4%
Even split
812 of 7,809 births nationwide. Compared to a flat distribution across 30 reporting states.
Seamus appears in 30 states. Explore state details →
Frequently Asked Questions
How popular is the name Seamus? ▼
7,809 babies have been named Seamus since 1957. It currently ranks #1451 among boys. The peak year was 2008 with 298 births.
When was Seamus most popular? ▼
Seamus was most popular in the 2000s decade with 2,446 total births. The single peak year was 2008.
Where is Seamus most popular? ▼
The top states for the name Seamus are New York (812 births), Massachusetts (778 births), California (680 births).
How long has the name Seamus been used? ▼
Records for Seamus go back to 1957, giving 69 years of history through 2025.
What names are similar to Seamus? ▼
Names with a similar sound or spelling include Sean, Seanmichael, Seaborn, Seann, and 4 more. These share a common prefix and are also used for boys.
What to do with Seamus's data
- Seamus's usage has stayed within range of its 2000s decade-level peak (2,446 total births) through the 2020s (878) -- a comparatively stable name, not a fading trend.
- New York records the most Seamuss (812 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 Seamus
Nearby Names Like Seamus
Names with a similar sound, spelling, or feel to Seamus
Sean Boy
#435 423,637 births
Seanmichael Boy
588 births
Seaborn Boy
526 births
Seann Boy
517 births
Seanpaul Boy
260 births
Compare Seamus side by side: Seamus vs Sean Seamus vs Seanmichael Seamus vs Seaborn
Related Names
Names with a similar popularity rank to Seamus
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, 1957–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Seamus: #1451 Boys' Name - 7,809 Births, Peak 2008." NameAlmanac. Accessed via https://namealmanac.com/name/seamus. 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 Seamus 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.