Fiadh vs Kathlyn
Fiadh and Kathlyncompared 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.
Republic of Ireland · Girls
In 2015, Fiadh was ranked #35 and Kathlyn #896 among girls in Republic of Ireland.
Fiadh and Kathlyn over time
Fiadh and Kathlyn appear together in 1 published list, across 11 years of shared records. Fiadh held the stronger position in more years in 1 of them, Kathlyn in 0.
The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.
Kathlyn reached its own highest recorded position earlier in 1 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.
List by list
Republic of Ireland · Girls11 shared years, 2002–2015
Fiadh held the stronger position in 7 of those years, Kathlyn in 4.
Highest recorded here: Fiadh #35 in 2015, Kathlyn #247 in 2003.
The order changed in 2008: Fiadh moved ahead. In 2007 they stood at #505 and #326; by 2008 that had become #341 and #862.
Most recent shared year, 2015: Fiadh #35, Kathlyn #896.
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 | Fiadh | Kathlyn |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | female | female |
| Meaning | Carries dual meanings in Modern Irish: 'wild, wild animal, deer' (from Irish 'fia'), or alternatively 'respect'. | Not yet recorded |
| Origin | Irish (modern) | Not yet recorded |
| Pronunciation | /ˈfʲiə/ | Not yet recorded |
| Syllables | 1 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE | GB-ENW, IE |
| Most recent popularity observation | Republic of Ireland · Girls #3 (2025) | Republic of Ireland · Girls #896 (2015) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 94/100 | 82/100 |
| International familiarity (demonstration score) | 100/100 | 60/100 |
| Data Confidence | medium | medium |
What the data shows
- Fiadh has a recorded origin (Irish (modern)); Kathlyn does not have one recorded yet.
- Fiadh has 1 syllable, compared with 2 for Kathlyn.
- A meaning is recorded for Fiadh; Kathlyn doesn't have one written yet.
- Both names have recorded usage in GB-ENW, IE.
How each name got here
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
Kathlyn
Popularity journey
First recorded1994
First recorded at #502 among girls in Republic of Ireland in 1994 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1994–2015
Highest recorded position: #211 among girls in Republic of Ireland, in 2005 (recorded 1994–2015).
Republic of Ireland · Girls
Most recent2015
Most recently recorded at #896 among girls in Republic of Ireland, in 2015.
Republic of Ireland · Girls