Aileen vs Kaiah
Aileen and Kaiahcompared 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, Aileen was ranked #751 and Kaiah #751 among girls in Republic of Ireland.
England and Wales · Girls
In 2024, Aileen was ranked #2411 and Kaiah #4843 among girls in England and Wales.
Aileen and Kaiah over time
Aileen and Kaiah appear together in 1 published list, across 11 years of shared records. Aileen held the stronger position in more years in 1 of them, Kaiah 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.
Aileen reached its own highest recorded position earlier in 1 of those lists, and Kaiah 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
England and Wales · Girls11 shared years, 1999–2024
Aileen held the stronger position in 9 of those years, Kaiah in 0.
Highest recorded here: Aileen #2367 in 2016, Kaiah #3533 in 2022.
The order changed in 2022: Aileen moved ahead. In 2021 they stood at #4634 and #4634; by 2022 that had become #3148 and #3533.
Most recent shared year, 2024: Aileen #2411, Kaiah #4843.
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 | Aileen | Kaiah |
|---|---|---|
| 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 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, IE, NO | GB-ENW, IE |
| Most recent popularity observation | Republic of Ireland · Girls #718 (2025) | England and Wales · Girls #4843 (2024) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 60/100 |
| Data Confidence | medium | medium |
What the data shows
- Aileen has 2 syllables, compared with 1 for Kaiah.
- Both names have recorded usage in GB-ENW, IE.
How each name got here
Aileen
Popularity journey
First recorded1964
First recorded at #100 among girls in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1964–2025
Highest recorded position: #81 among girls in Republic of Ireland, in 1983 (recorded 1964–2025).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #718 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls
Kaiah
Popularity journey
First recorded1999
First recorded at #3900 among girls in England and Wales in 1999 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Girls
Most recent2024
Most recently recorded at #4843 among girls in England and Wales, in 2024.
England and Wales · Girls