Roisin
About 987 American babies have been named Roisin since 1966, most of them around 2025. In 2025 it ranked 2,691st. About 980 Roisins are alive in the United States today, and half of them are over 13.
Popularity, 1880–2025
girls named Roisin
By the numbers
- Total US births
- 987
- Estimated living today
- 980
- Median age today
- 13
- Peak year
- 2025
- Best rank
- 2,691st
- Rank in 2025
- 2,691st
- First recorded
- 1966
How old the living Roisins are
born that year still alive today
Of the 987 babies given the name since 1966, about 980 are alive — 99 in every hundred. Roughly 590 of them are children and 0 are 65 or over. The dotted line is the median: half were born before 2012 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Where the name comes from
Origin Irish
Etymology from Wiktionary, used under CC BY-SA 4.0.
Notable Roisins
- Róisín Murphy (born 1973)Irish singer-songwriter
- Róisín O'Donovan (born 1989)Irish actress and film director
People named Roisin with articles in the most Wikipedia languages. Data from Wikidata (CC0).
Where Roisin is most common
Relative to how many babies each state records, Roisin is most concentrated in Massachusetts (9.5×), New York (4.7×), California (3.0×).
Total births recorded in each state since 1910. Browse names by state.
Names of 2025
The most popular girls’ names the year Roisin peaked:
Roisin elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| Ireland girls | Roisin +4 spellings | 9,977 | 23rd |
| England and Wales girls | Roisin | 2,170 | 247th |
| Scotland girls | Roisin | 668 | 136th |
| Northern Ireland girls | Roisin | 427 | 59th |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Roisin among the living
How many people each country's register counts under the name, rather than how many were given it in any one year. Each register was read on one date, and they are not the same date.
| Country | Spelling | First forename | Any forename |
|---|---|---|---|
| Finland girls | Róisín | — | 6 |
A count of people on a register – Finland on 4 August 2026 – and not of births, so it cannot be compared with the figures above. Names with very few bearers are withheld, and a dash in the first-forename column means the register would not say rather than that nobody goes by it.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.