Aileen vs Brenna
Aileen and Brennacompared 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 2008, Aileen was ranked #430 and Brenna #862 among girls in Republic of Ireland.
Northern Ireland · Girls
In 2018, Aileen was ranked #434 and Brenna #434 among girls in Northern Ireland.
England and Wales · Girls
In 2019, Aileen was ranked #2869 and Brenna #5591 among girls in England and Wales.
Aileen and Brenna over time
Aileen and Brenna appear together in 1 published list, across 19 years of shared records. Aileen held the stronger position in more years in 1 of them, Brenna 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.
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.
- Repeatedly exchanged positions
Aileen and Brenna changed places 11 times in England and Wales · Girls between 1996 and 2019, ending at #2869 and #5591.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Girls within 2 years — Aileen #1434 in 1996, Brenna #916 in 1996.
List by list
England and Wales · Girls19 shared years, 1996–2019
Aileen held the stronger position in 11 of those years, Brenna in 7.
Highest recorded here: Aileen #1434 in 1996, Brenna #916 in 1996.
The order changed in 2013: Aileen moved ahead. In 2012 they stood at #5785 and #3549; by 2013 that had become #2649 and #5742.
Most recent shared year, 2019: Aileen #2869, Brenna #5591.
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 | Brenna |
|---|---|---|
| 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, IE, NO | GB-ENW, GB-NIR, IE |
| Most recent popularity observation | Republic of Ireland · Girls #718 (2025) | England and Wales · Girls #5591 (2019) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 88/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Aileen and Brenna both have 2 syllables.
- Both names have recorded usage in GB-ENW, GB-NIR, 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
Brenna
Popularity journey
First recorded1996
First recorded at #916 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 recorded1998–2018
Highest recorded position: #206 among girls in Northern Ireland, in 2001 (recorded 1998–2018).
Northern Ireland · Girls
Most recent2019
Most recently recorded at #5591 among girls in England and Wales, in 2019.
England and Wales · Girls