Boy · #4,344 in 2026

Fionn

Name: Popularity of the name Fionn in U.S. births, 1880–2026
Creator: U.S. Social Security Administration
License: https://www.ssa.gov/foia/
Keywords: Fionn, baby name, popularity, U.S., SSA, rankings

Fionn is a masculine given name in Irish and Scottish Gaelic. In English, it is pronounced "Fyun". It is derived from a byname meaning "white" or "fair-haired". It is the original version of a name later anglicized as Find and Finn.

Irish
Irish Mythology

Current Rank

#4,344

Peak Rank

#2,942 (2018)

Total Babies

706

5-Yr Trend

-19%

1973

First Year

2026

Last Year

2018

Peak Year

#2942

Peak Rank

706

Total Count

Years Active

Meaning & Origin of Fionn

What this name means, where it came from, and how it has traveled across cultures.

Source: Wikipedia (CC BY-SA 3.0). Read more →

Cultural Origins (via Behind the Name)

Irish
Irish Mythology

The Story of Fionn

Fionn first appeared in U.S. Social Security Administration records as a baby boy name in 1973, with 5 babies given the name that year. Its peak popularity came in 2018, when 40 Fionns were born — ranking #2,942 that year. As of 2026, Fionn ranks #4,344 for baby boys with 24 births, falling sharply (-19%). In total, more than 706 Fionns have been born in the U.S. since records began in 1880, spanning the 1970s through the 2020s.

Popularity Over Time

Popularity by State

Top 10

11-50

51-100

101-500

500+

No data

Variants & Related Forms of Fionn

Foreign forms, alternate spellings, and nicknames that share roots with Fionn. Linked entries have a profile on Peek a Name.

Finn
Fion
Fionnán

Names that sound like Fionn

Phonetically similar names — useful when Fionn is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.

Fion
Feehan
Pheon
Faon
Phone
Flown
Fiona
Feen
Fien
Fone
Phene
Fene

Source: Datamuse . Phonetic similarity ranking, not curated.

Frequently Asked Questions about Fionn

What does the name Fionn mean?

What is the origin of the name Fionn?

Fionn has roots in the following cultural and linguistic traditions: Irish, Irish Mythology.

How popular is Fionn in 2026?

In 2026, Fionn ranks #4,344 among boys' names in the U.S., with 24 babies given the name that year.

When was Fionn most popular?

Fionn reached its peak popularity in 2018, ranking #2,942 that year with 40 babies given the name.

In which U.S. states is Fionn most popular?

Fionn has historically been most popular in Massachusetts, Pennsylvania, New York. Rankings vary year to year, but these states show the strongest concentration of births named Fionn.

Is Fionn a unisex name?

In U.S. Social Security records, Fionn is primarily a boy's name. We don't have meaningful data for it as a girl's name.

What names go well with Fionn?

Names that share a similar style or popularity range with Fionn include Cassie, Josie, Obediah. These pairings are based on rank proximity and naming era in U.S. data.

What are nicknames or variants of Fionn?

Common variants and related forms of Fionn include Finn, Fion, Fionnán. These cover foreign-language equivalents, alternate spellings, and short forms.

About the name Fionn

Fionn is a boy baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1973 and has accumulated 706 births in the dataset. Fionn's peak popularity came in 2018 when it ranked #2,942. Use the chart and map above to compare Fionn's trajectory across years and U.S. states, or browse the related names section to discover similar choices.

Continue exploring

Data sources

Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
Predicted nationality distribution — Nationalize.io .
Phonetically similar names — Datamuse .

Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.