Oisìn is a boy name with a rare feel, drawn from real birth records. Below you'll find how many babies have been named Oisìn across the United States, UK, Ireland and New Zealand, how popular Oisìn has been over the decades, and the year it peaked.
| Country | Births on record |
|---|---|
| Ireland since 1964 | 3 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 Oisìn per year, Ireland (1964 to 2025). Ireland peaked in 2025 (3/yr).
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