Fionn is a boy name with a rare feel, drawn from real birth records. Below you'll find what Fionn means and where it comes from, plus how many babies have been named Fionn across the United States, UK, Ireland and New Zealand, how popular Fionn has been over the decades, and the year it peaked.
Fionn is a boy name of Irish (Gaelic) origin meaning “fair, white”. Borne by the legendary hero Fionn mac Cumhaill of Irish myth.
| Country | Births on record |
|---|---|
| United States since 1880 | 682 births |
| England & Wales since 1996 | 1,009 births |
| Scotland since 1974 | 218 births |
| Northern Ireland since 1997 | 1,089 births |
| Ireland since 1964 | 6,917 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 Fionn per year, Ireland (1964 to 2025). Ireland peaked in 2015 (325/yr) · England & Wales peaked in 2022 (69/yr) · Northern Ireland peaked in 2015 (68/yr) · United States peaked in 2018 (40/yr) · Scotland peaked in 2022 (14/yr).
Fionn is a rare baby name in the United States. It was most common in 2018, when it ranked #6,530 nationally (given to 461 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 →