Fionn
maleIrishTraditionally interpreted as 'white' or 'fair', extending in Old Irish usage to 'bright' and figuratively 'true, just'. Strongly associated with the mythological hero Fionn mac Cumhaill.
Origin: Irish
Official popularity data is available for 4 regions, from 1971 to 2025. Highest recorded position: #6 in Republic of Ireland in 2025. See regions.
Fionn: Recorded since 1971, its highest recorded position is #6, and it was still inside the top 100 in 2025.
Data Confidence
Confidence in the evidencebehind this name's data — never a rating of the name itself, and never affected by how well it matches your preferences. How this is assessed
Because: backed by officially or academically authoritative sources, recently verified, popularity data covers multiple regions.
Averaged from the real per-claim source-authority assessments already computed for this name's meaning/origin/pronunciation/popularity evidence.
Averaged from the real per-claim supporting-source counts already computed for this name's evidence.
See full evidence assessment (8 dimensions, 1 not yet tracked)
No recorded source disagreement for this name's meanings or origins.
Calculated from how long ago this record was last verified (2026-07-21), against a 270-day staleness threshold.
Calculated from the number of geographies with official popularity data (4) — broader official coverage means the evidence base is relevant to more of where the name is actually used.
Calculated from how many of the expected data sections (variants, similar names, popularity, notable usage, IPA pronunciation) are actually populated for this name.
Averaged from the real per-claim direct-observation-vs-inference ratios already computed for this name's evidence.
Cross-source identity and variant resolution requires HEKNO Knowledge, which isn't connected yet.
Name Characteristics
How these are calculatedDescriptive attributes of the name itself — not a confidence measurement, and not an overall quality score. Namewise doesn't approve or disapprove of names.
Editorial judgement of how consistently this name is pronounced correctly on first read, mapped from an easy/moderate/variable rating to a number. Describes the name — not a measure of evidence confidence.
Calculated directly from the name's spelling: shorter names with fewer irregular letter clusters score higher. A disclosed formula, not an editorial opinion — and not a confidence measurement.
Derived from how many geographies' official statistics record this name. It measures where the name is registered, not how well-known it feels to people living there.
Derived from the same official statistical coverage, scaled to reflect how widely the name crosses national datasets. Not a measure of how easily it is understood in another language.
Derived from the name's traditional/modern classification and its current popularity trend direction.
Overview
- Origin
- Irish
- Meaning
- Traditionally interpreted as 'white' or 'fair', extending in Old Irish usage to 'bright' and figuratively 'true, just'. Strongly associated with the mythological hero Fionn mac Cumhaill.
- Pronunciation
- FIN
- Syllables
- 1
- Common nicknames
- None recorded
- Classification
- Traditional & modern
- Gender usage
- male
- Language family
- Irish
Popularity
among girls in England and Wales · 1996–2004
View as table
| Year | Rank |
|---|---|
| 1996 | #3126 |
| 1997 | #2152 |
| 1998 | #2701 |
| 1999 | #2444 |
| 2001 | #3262 |
| 2002 | #4137 |
| 2003 | #4373 |
| 2004 | #4598 |
VerifiedSource: Office for National Statistics — Baby Names in England and Wales.Confidence: high.
See all England and Wales names · Source: Office for National Statistics — Baby Names in England and Wales
What the data shows
Recorded in official data among boys in Republic of Ireland in 51 of the 55 years from 1971 to 2025.
In 2025: #6 among boys in Republic of Ireland, #658 among boys in England and Wales.
Official data from 4 national registrars across 4 regions, 1971–2025 · Office for National Statistics. Data sources
Popularity journey
First recorded1971
First recorded at #257 among boys in Republic of Ireland in 1971 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #658 among boys in England and Wales, in 2025.
England and Wales · Boys
Meaning & Origin
Traditionally interpreted as 'white' or 'fair', extending in Old Irish usage to 'bright' and figuratively 'true, just'. Strongly associated with the mythological hero Fionn mac Cumhaill.
VerifiedSource: Behind the Name, eDIL: Electronic Dictionary of the Irish Language.Confidence: high.
VerifiedSource: Behind the Name.Confidence: medium.
Where Fionn is officially recorded
4 official registrars have recorded Fionn, between 1971 and 2025, in 51 of those 55 years. Each registrar publishes for its own population on its own methodology, so the positions below are each one country's own ranking and are not comparable with one another.
| Registrar | Recorded | Years | Its own highest position |
|---|---|---|---|
| Republic of Ireland | 1971–2025 | 51 | #6 in 2023 |
| England and Wales | 1996–2025 | 30 | #555 in 2022 |
| Northern Ireland | 1999–2024 | 26 | #26 in 2024 |
| Scotland | 2024 | 1 | #330 in 2024 |
Variants
No spelling variants or nicknames recorded yet.
Similar Names
No similar names recorded yet for this name.
Similarity is a demonstration score — see methodology.
Spelling
Calculated directly from the name's spelling — see Name Characteristics above.
No commonly used alternate spellings recorded.
Pronunciation
- Syllables
- 1
- Ease
- easy
VerifiedSource: Behind the Name.Confidence: medium.
Where Fionn Is Recorded
National statistical agencies have recorded Fionn in these places. This shows where the name is used — not where it comes from, and not that it carries particular cultural significance there.
Notable Usage
No safely-sourced notable usage recorded for this name yet.
Sibling & Surname Compatibility
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