Total births
987
Girls' name · since 1966
Roisin
Roisin has 987 recorded births since 1966 in federal Social Security data, most heavily in 2025 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #3596
- among girls today
- 987
- born since 1966
- 2020s
- peak decade
- 80%
- more common than other girls
Yes -- Roisin is the #3596 most popular girls' name in the U.S. today, with 987 recorded since 1966.
Social Security Administration records show Roisin recorded 987 times among girls since 1966, holding rank #3596 nationally today, ahead of 80% of girls, peaking in the 2020s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1966 to 2025.
- #3596 among girls today
- 987 born since 1966
- 2020s peak decade
- 80% more common than other girls
Data updated Jul 2026
The verdict
Roisin is currently the #3596 girls' name in America, more common than 80% of girls - 987 born since 1966, peaking in the 2020s.
- #3596
- among girls today
- 987
- born since 1966
- 2020s
- peak decade
- 80%
- more common than other girls
Roisin vs. every other girls name in current SSA rankings
#3596
of 17,726 girls in use
More common than 80% of names given to girls today.
2020s
Peak decade
29% of everyone ever named Roisin was born in this single decade.
2025
Single peak year
64 babies were named Roisin in 2025 - its busiest year on record.
How Roisin compares
987 Top 32% higher than 68% 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
Roisin's all-time total is 158% above the median girls name, and Olivia still leads by a wide margin.
| Metric | Roisin | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 987 | 382 | 567,345 |
| Peak-year births | 64 | 48 | 19,840 |
Roisin's usage pattern, beyond the headline number
Divide Roisin's SSA record in two at 2002 and the more recent half accounts for 75% of all births, the earlier half the remaining 25%, consistent with a name still gaining ground rather than fading. Its calmest year was 1979, with only 5 births recorded -- set against the 2025 peak of 64, that's the full swing in one name's fortunes.
Roisin at a glance
Outside the top 1,000Peak year
2025
Current rank
#3,596
Active since
1966
Roisin popularity over time
Annual U.S. births registered with the Social Security Administration · 1966–2025
- Peak year (2025)
- 64
- Annual births at peak, across 60 years of records
Roisin by decade
Total births in each ten-year window, peak vs trough at a glance
2020s was Roisin's strongest decade.
282 babies received the name during that ten-year window, about 29% of all-time use.
Roisin births by decade
Total births in each ten-year window
- 1960s 8
1960s
8 births
- 1970s 28
1970s
28 births
- 1980s 36
1980s
36 births
- 1990s
1990s
130 births
- 2000s
2000s
227 births
- 2010s
2010s
276 births
- 2020s
2020s
282 births
What this shows Peak: 2020s at 282 births (29% of all-time use).
How Roisin 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 Roisin's total volume
Roisin vs 15 similarly-sized girls names
Roisin by state
Where Roisin concentrates geographically, total births since 1966
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | New York | | 89 | 9.0% |
| #2 | California | | 74 | 7.5% |
| #3 | Massachusetts | | 57 | 5.8% |
| #4 | Illinois | | 12 | 1.2% |
| #5 | New Jersey | | 5 | 0.5% |
| #6 | Pennsylvania | | 5 | 0.5% |
New York share of Roisin's total US births 9.0%
Even split
89 of 987 births nationwide. Compared to a flat distribution across 6 reporting states.
Frequently Asked Questions
How popular is the name Roisin? ▼
Since 1966, Social Security records show 987 babies named Roisin. Today it holds rank #3596 among girls. Its busiest year on record was 2025, with 64 births.
When was Roisin most popular? ▼
Roisin was most popular in the 2020s decade with 282 total births. The single peak year was 2025.
Where is Roisin most popular? ▼
The top states for the name Roisin are New York (89 births), California (74 births), Massachusetts (57 births).
How long has the name Roisin been used? ▼
Roisin has been recorded in Social Security data since 1966, spanning 60 years of data through 2025.
What names are similar to Roisin? ▼
Names with a similar sound or spelling include Roizy, Roiza, Roise, Roi, and 3 more. These share a common prefix and are also used for girls.
What to do with Roisin's data
- New York records the most Roisins (89 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 Roisin
Nearby Names Like Roisin
Names with a similar sound, spelling, or feel to Roisin
Roizy Girl
#9186 410 births
Roiza Girl
#9822 190 births
Roise Girl
#15451 72 births
Roi Girl
51 births
Roiann Girl
10 births
Compare Roisin side by side: Roisin vs Roizy Roisin vs Roiza Roisin vs Roise
Related Names
Names with a similar popularity rank to Roisin
Data Sources
Data as of July 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, 1966–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Roisin: #3596 Girls' Name - 987 Births, Peak 2025." NameAlmanac. Accessed via https://namealmanac.com/name/roisin. 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 Roisin 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 July 2026.