Eileen vs Kaitlyn
Eileen and Kaitlyncompared 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 2021, Eileen was ranked #446 and Kaitlyn #350 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2024, Eileen was ranked #372 and Kaitlyn #736 among girls in Republic of Ireland.
England and Wales · Girls
In 2024, Eileen was ranked #855 and Kaitlyn #1672 among girls in England and Wales.
Eileen and Kaitlyn over time
Eileen and Kaitlyn appear together in 3 published lists, across 68 years of shared records. Kaitlyn held the stronger position in more years in 3 of them, Eileen in 0.
The order between them changed and held in 2 of those lists — a change in that published list, never a claim that one name displaced the other.
Eileen reached its own highest recorded position earlier in 2 of those lists, Kaitlyn in 1. 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 1999, Kaitlyn moved ahead of Eileen in Northern Ireland · Girls — #314 and #358 the year before became #344 and #181.
- Repeatedly exchanged positions
Eileen and Kaitlyn changed places 4 times in Republic of Ireland · Girls between 1998 and 2024, ending at #372 and #736.
List by list
England and Wales · Girls29 shared years, 1996–2024
Eileen held the stronger position in 3 of those years, Kaitlyn in 26.
Highest recorded here: Eileen #855 in 2024, Kaitlyn #139 in 2006.
The order changed in 2022: Eileen moved ahead. In 2021 they stood at #1069 and #957; by 2022 that had become #876 and #1282.
Most recent shared year, 2024: Eileen #855, Kaitlyn #1672.
Republic of Ireland · Girls27 shared years, 1998–2024
Eileen held the stronger position in 9 of those years, Kaitlyn in 16.
Highest recorded here: Eileen #222 in 1998, Kaitlyn #146 in 2002.
The order between them never changed and held in this list.
Most recent shared year, 2024: Eileen #372, Kaitlyn #736.
Northern Ireland · Girls12 shared years, 1997–2021
Eileen held the stronger position in 1 of those years, Kaitlyn in 11.
Highest recorded here: Eileen #314 in 1997, Kaitlyn #95 in 2001.
The order changed in 1999: Kaitlyn moved ahead. In 1998 they stood at #314 and #358; by 1999 that had become #344 and #181.
Most recent shared year, 2021: Eileen #446, Kaitlyn #350.
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 | Eileen | Kaitlyn |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Official statistical record (evidence-only) |
| Gender usage | female | female |
| Meaning | Not yet recorded | Not yet recorded |
| Origin | Not yet recorded | Not yet recorded |
| Pronunciation | Not yet recorded | Not yet recorded |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE, NO | AU-NSW, GB-ENW, GB-NIR, IE, NZ |
| Most recent popularity observation | Republic of Ireland · Girls #443 (2025) | Republic of Ireland · Girls #736 (2024) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 82/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Eileen and Kaitlyn both have 2 syllables.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Eileen
Popularity journey
First recorded1945
First recorded at #324 among girls in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1964–2025
Highest recorded position: #17 among girls in Republic of Ireland, in 1964 (recorded 1964–2025).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #501 among girls in Norway, in 2025.
Norway · Girls
Kaitlyn
Popularity journey
First recorded1994
First recorded at #96 among girls in New South Wales, Australia in 1994 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New South Wales, Australia · Girls
Highest recorded1996–2007
Highest recorded position: #66 among girls in New Zealand, in 2002 (recorded 1996–2007).
New Zealand · Girls
Most recent2024
Most recently recorded at #1672 among girls in England and Wales, in 2024.
England and Wales · Girls