Caitlyn vs Fiadh
Caitlyn and Fiadhcompared on official birth-registration statistics and Namewise's recorded data. This page states what each name's record shows — it never picks a winner or scores one name against the other.
Head to head
Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.
Northern Ireland · Girls
In 2024, Caitlyn was ranked #407 and Fiadh #3 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2024, Caitlyn was ranked #898 and Fiadh #5 among girls in Republic of Ireland.
England and Wales · Girls
In 2024, Caitlyn was ranked #1449 and Fiadh #374 among girls in England and Wales.
Caitlyn and Fiadh over time
Caitlyn and Fiadh appear together in 3 published lists, across 44 years of shared records. Fiadh held the stronger position in more years in 2 of them, Caitlyn in 1.
The order between them changed and held in 3 of those lists — a change in that published list, never a claim that one name displaced the other.
Caitlyn reached its own highest recorded position earlier in 3 of those lists, and Fiadh in none. Each position is a place inside its own list, so this compares when they peaked and never how high.
Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.
How this pair is related
The relationship kinds these two qualify for, each under its own stated rule. Every one is drawn from a list they both appear in.
- One moved ahead of the other
In 2012, Fiadh moved ahead of Caitlyn in Northern Ireland · Girls — #207 and #311 the year before became #203 and #172.
List by list
Republic of Ireland · Girls21 shared years, 2002–2024
Caitlyn held the stronger position in 6 of those years, Fiadh in 15.
Highest recorded here: Caitlyn #225 in 2003, Fiadh #1 in 2021.
The order changed in 2010: Fiadh moved ahead. In 2009 they stood at #358 and #488; by 2010 that had become #333 and #319.
Most recent shared year, 2024: Caitlyn #898, Fiadh #5.
England and Wales · Girls12 shared years, 2013–2024
Caitlyn held the stronger position in 7 of those years, Fiadh in 5.
Highest recorded here: Caitlyn #261 in 2013, Fiadh #355 in 2021.
The order changed in 2020: Fiadh moved ahead. In 2019 they stood at #749 and #1063; by 2020 that had become #969 and #460.
Most recent shared year, 2024: Caitlyn #1449, Fiadh #374.
Northern Ireland · Girls11 shared years, 2008–2024
Caitlyn held the stronger position in 4 of those years, Fiadh in 7.
Highest recorded here: Caitlyn #138 in 2008, Fiadh #3 in 2024.
The order changed in 2012: Fiadh moved ahead. In 2011 they stood at #207 and #311; by 2012 that had become #203 and #172.
Most recent shared year, 2024: Caitlyn #407, Fiadh #3.
Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.
Side by side
| Field | Caitlyn | Fiadh |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | female | female |
| Meaning | Not yet recorded | Carries dual meanings in Modern Irish: 'wild, wild animal, deer' (from Irish 'fia'), or alternatively 'respect'. |
| Origin | Not yet recorded | Irish (modern) |
| Pronunciation | Not yet recorded | /ˈfʲiə/ |
| Syllables | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, IE, NZ | GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | Northern Ireland · Girls #407 (2024) | Republic of Ireland · Girls #3 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 82/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Fiadh has a recorded origin (Irish (modern)); Caitlyn does not have one recorded yet.
- Caitlyn has 2 syllables, compared with 1 for Fiadh.
- A meaning is recorded for Fiadh; Caitlyn doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Caitlyn
Popularity journey
First recorded1996
First recorded at #686 among girls in England and Wales in 1996 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Girls
Highest recorded1999–2008
Highest recorded position: #66 among girls in New Zealand, in 2007 (recorded 1999–2008).
New Zealand · Girls
Most recent2024
Most recently recorded at #1449 among girls in England and Wales, in 2024.
England and Wales · Girls
Fiadh
Popularity journey
First recorded2002
First recorded at #620 among girls in Republic of Ireland in 2002 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded2002–2025
Highest recorded position: #1 among girls in Republic of Ireland, in 2021 (recorded 2002–2025).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #3 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls