Oisin
- Gender
- Boy
- Say it
- o-SHEEN
- Origin
- Irish
- UK rank, 2025
- #261 for boys
- US rank, 2025
- #4,538 for boys
- Style
- Big in Northern Ireland
Oisin is a boys' name of Irish origin, meaning “little deer”. In 2025 it ranked 261st for boys in the UK (198 babies) and 4,538th for boys in the US (22 babies).
What does Oisin mean?
Irish
“little deer”
In Irish legend Oisin, poet son of Fionn mac Cumhaill, followed Niamh to Tir na nOg, the land of eternal youth.
More on Wiktionary.
Is Oisin a girl's or a boy's name?
Oisin is a boys' name. In 2025, it was given to 198 boys in the UK and 22 boys in the US. Too few girls were given it to be listed.
How popular is Oisin in the UK?
- Rank in 2025
- 261st among boys
- Babies in 2025
- 198 about 1 in 1,500 boys
- Five-year trend
- Steady up 12% in five years
- Same name in a class
- under 1% chance among 15 boys
In 2025, 198 boys in the UK were named Oisin, making it the 261st most popular name for boys. Five years earlier, in 2020, it was 332nd. Its busiest year was 2021, with 224 boys.
Half of all the boys named Oisin in the UK since 1996 were born between 2006 and 2020, the years shaded on the chart below.
Among boys in 2025, it was 517th in England and Wales, 262nd in Scotland and 6th in Northern Ireland.
Oisin in the UK, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 198 | #261 |
| 2024 | 182 | #284 |
| 2023 | 185 | #279 |
| 2022 | 203 | #258 |
| 2021 | 224 | #252 |
| 2020 | 152 | #332 |
| 2019 | 181 | #300 |
| 2018 | 171 | #317 |
| 2017 | 179 | #317 |
| 2016 | 180 | #315 |
| 2015 | 166 | #320 |
| 2014 | 165 | #311 |
| 2013 | 150 | #323 |
| 2012 | 153 | #333 |
| 2011 | 148 | #334 |
| 2010 | 149 | #334 |
| 2009 | 150 | #310 |
| 2008 | 162 | #289 |
| 2007 | 153 | #286 |
| 2006 | 130 | #301 |
| 2005 | 131 | #284 |
| 2004 | 146 | #256 |
| 2003 | 148 | #242 |
| 2002 | 121 | #269 |
| 2001 | 124 | #258 |
| 2000 | 115 | #277 |
| 1999 | 87 | #335 |
| 1998 | 77 | #351 |
| 1997 | 62 | #410 |
| 1996 | 15 | #979 |
How popular is Oisin in the US?
- Rank in 2025
- 4,538th among boys
- Babies in 2025
- 22 about 1 in 78,000 boys
- Five-year trend
- Steady down 3% in five years
- Same name in a class
- under 1% chance among 15 boys
In 2025, 22 boys in the US were named Oisin, making it the 4,538th most popular name for boys. Five years earlier, in 2020, it was 3,495th. Its busiest year was 2020, with 31 boys. It first appears in the records in 1991.
2025 had fewer boys named Oisin than any year since 2019.
Half of all the boys named Oisin in the US since 1880 were born between 2006 and 2020, the years shaded on the chart below.
Oisin in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 22 | #4,538 |
| 2024 | 26 | #4,069 |
| 2023 | 25 | #4,216 |
| 2022 | 29 | #3,772 |
| 2021 | 24 | #4,243 |
| 2020 | 31 | #3,495 |
| 2019 | 16 | #5,551 |
| 2018 | 28 | #3,789 |
| 2017 | 21 | #4,590 |
| 2016 | 21 | #4,623 |
| 2015 | 16 | #5,503 |
| 2014 | 16 | #5,481 |
| 2013 | 16 | #5,400 |
| 2012 | 17 | #5,250 |
| 2011 | 15 | #5,670 |
| 2010 | 15 | #5,737 |
| 2009 | 20 | #4,746 |
| 2008 | 11 | #7,182 |
| 2007 | 12 | #6,618 |
| 2006 | 16 | #5,299 |
| 2005 | 13 | #5,869 |
| 2004 | 15 | #5,241 |
| 2003 | 14 | #5,265 |
| 2002 | 12 | #5,718 |
| 2001 | 10 | #6,438 |
| 2000 | 9 | #6,832 |
| 1999 | 11 | #5,650 |
| 1998 | 9 | #6,308 |
| 1997 | 7 | #7,275 |
| 1996 | 0 | – |
| 1995 | 10 | #5,495 |
| 1994 | 0 | – |
| 1993 | 0 | – |
| 1992 | 0 | – |
| 1991 | 6 | #7,263 |
Names like Oisin
Names given in the same years and the same naming tradition, with a similar sound.
Finn, Ronan, Kian, Aiden, Kayden, Rowan, Caelan, Lochlan, Brody, Callan, Osian, Cillian
Names related to Oisin
More Irish names
Oscar, Rory, Maeve, Ryan, Nolan, Quinn, Orla, Cody, Erin, Connor, Declan, Casey, Kennedy, Lennon, Kevin, Sloane
Sources
Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland), Baby names (Northern Ireland Statistics and Research Agency) and Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Oisin: name meaning, origin and popularity”, https://www.nameling.co.uk/names/oisin, updated 20 October 2026.