Fionn is a boy name with a rare feel, drawn from real birth records.
| Country | Births on record |
|---|---|
| United States since 1880 | 682 births |
| England & Wales since 1996 | 1,009 births |
| Ireland since 1964 | 6,917 births |
Counts come from national birth registrations: the U.S. Social Security Administration, England & Wales (ONS) and Ireland (CSO). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Fionn per year — Ireland (1964–2025). Ireland peaked in 2015 (325/yr) · England & Wales peaked in 2022 (69/yr) · United States peaked in 2018 (40/yr).
Fionn reached its peak in 2018, when it was the #6530 most popular baby name in the United States — making it a quintessential 2010s name.
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