Oisin is a boy name with a rare feel, drawn from real birth records. Below you'll find what Oisin means and where it comes from, plus how many babies have been named Oisin across the United States, UK, Ireland and New Zealand, how popular Oisin has been over the decades, and the year it peaked.
Oisin is a boy name of Irish (Gaelic) origin meaning “little deer”. A legendary Irish poet and warrior of the Fianna.
| Country | Births on record |
|---|---|
| United States since 1880 | 513 births |
| England & Wales since 1996 | 1,234 births |
| Scotland since 1974 | 181 births |
| Northern Ireland since 1997 | 2,778 births |
| Ireland since 1964 | 8,828 births |
Counts come from official national birth-registration statistics: U.S. Social Security Administration, England & Wales (Office for National Statistics), Scotland (National Records of Scotland), Northern Ireland (NISRA), Ireland (Central Statistics Office) and New Zealand (Dept. of Internal Affairs). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Oisin per year, Ireland (1964 to 2025). Ireland peaked in 2008 (454/yr) · Northern Ireland peaked in 2008 (121/yr) · England & Wales peaked in 2022 (79/yr) · United States peaked in 2020 (31/yr) · Scotland peaked in 2021 (19/yr).
Oisin is a rare baby name in the United States. It was most common in 2020, when it ranked #7,706 nationally (given to 201 babies that year).
Not sure if it's the one? The best way to know is to see if your partner loves it too. Swipe baby names with your partner and match on the ones you both ❤️, free, no account needed to start.
Find your name together →