Fionn
Fionn first appears in US records in 1973. It peaked in 2018, when 40 boys were given the name; in 2025 there were 25.
Source: US Social Security Administration.
Is Fionn popular?
Steady Fionn has held fairly steady over the past decade, after peaking in 2018.
| 2020s | 169 | |
|---|---|---|
| 2010s | 297 | |
| 2000s | 192 | |
| 1990s | 19 | |
| 1970s | 5 |
Counts from US Social Security Administration data, 1880–2025.
What does Fionn mean?
Fionn means “fair” or “white.” Fionn mac Cumhaill leads the warriors of the Fianna.
Names like Fionn
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Names that pair well with Fionn
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Frequently asked questions
What does the name Fionn mean?
Fionn means Fair, white. Fionn means “fair” or “white.” Fionn mac Cumhaill leads the warriors of the Fianna.
What is the origin of the name Fionn?
Fionn is of Irish origin.
How do you pronounce Fionn?
Fionn is pronounced “FYUN.”
Is Fionn a boy or a girl name?
Fionn is most commonly used as a boy name.
Is Fionn a popular name right now?
Fionn has held fairly steady over the past decade, after peaking in 2018.
How popular is the name Fionn?
In 2025, Fionn ranked #4171 among boys’ names in the United States, according to U.S. Social Security Administration data.
When was the name Fionn most popular?
Fionn was most popular in 2018, when about 40 US babies were given the name that year, according to US Social Security Administration records.
What names are similar to Fionn?
Names similar to Fionn include Conall, Tynan, Tadhg, Egan, Oisin.
What names go well with Fionn?
Irish names that pair well with Fionn include Ryan, Liam, Aiden, Sean, Aidan.