Fionn
- Meaning
- Fair or white
- Origin
- Irish
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What does Fionn mean?
Fionn means “Fair or white”.
Fionn is an Irish name meaning fair or white. Its most famous association is with Fionn mac Cumhaill, the hero whose adventures belong to the Fenian cycle of Irish legend. Stories about him include the Salmon of Knowledge, connecting the name with wisdom acquired through a magical encounter. Wisdom is part of the story, while fair is the name's literal meaning.
Finn is a closely related spelling familiar to English speakers. The pronunciation of Fionn can vary with Irish dialect and with the language a family uses, so it is better to follow the intended family pronunciation than assume one English reading fits everyone. Retaining Fionn keeps the Irish written form visible and connects a child's name with a substantial body of traditional storytelling.
Nicknames & variations
Explore short forms, spellings, and related names.
Variations & related forms
Related forms and spellings recorded for this name.
How popular is Fionn?
United States · 2025Explore how often Fionn is used and how its ranking has changed.
- US boys rank
- #4,171 2025 · #1 is most popular
- Boys named Fionn
- 25 Recorded births in 2025
- Change in births
- 13.6% More than 2024
Fionn over time
United States · Boys
Recorded births
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Yearly data & usage
Rankings are calculated separately for girls and boys. The summary highlights boys, the most common recorded usage in 2025.
| Year | Usage | US rank | Births |
|---|---|---|---|
| 2025 | Boys | #4,171 | 25 |
| 2024 | Boys | #4,605 | 22 |
| 2023 | Boys | #3,650 | 31 |
| 2022 | Boys | #3,922 | 28 |
| 2021 | Boys | #3,038 | 40 |
| 2020 | Boys | #4,315 | 23 |
| 2019 | Boys | #4,152 | 25 |
| 2018 | Boys | #2,964 | 40 |
| 2017 | Boys | #3,405 | 33 |
| 2016 | Boys | #3,715 | 29 |
| 2015 | Boys | #3,542 | 31 |
| 2014 | Boys | #4,172 | 24 |
Years reflect available birth records. Missing records do not mean zero births.
Names like Fionn
Explore the connection, then save your favorites to compare.
Finn
Mostly boys- Meaning
- Fair, white; from Finland
Listed as a related name to Fionn.
Finnian
Mostly boys- Meaning
- Fair or white
Shares the recorded meaning “Fair or white” with Fionn.
Liam
Mostly boys- Meaning
- Resolute protection
Shares an origin with Fionn.
Riley
Unisex- Meaning
- Rye clearing (English); Irish surname origin uncertain
Shares an origin with Fionn.
Rowan
Unisex- Meaning
- Rowan tree; little redhead
Shares an origin with Fionn.
Aiden
Mostly boys- Meaning
- Little and fiery
Shares an origin with Fionn.
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