Aileen vs Riley
Aileen and Rileycompared 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.
England and Wales · Girls
In 2024, Aileen was ranked #2411 and Riley #175 among girls in England and Wales.
Northern Ireland · Girls
In 2018, Aileen was ranked #434 and Riley #179 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2025, Aileen was ranked #718 and Riley #266 among girls in Republic of Ireland.
Aileen and Riley over time
Aileen and Riley appear together in 2 published lists, across 44 years of shared records. Riley held the stronger position in more years in 2 of them, Aileen 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.
Aileen reached its own highest recorded position earlier in 2 of those lists, and Riley 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.
- Repeatedly exchanged positions
Aileen and Riley changed places 5 times in Republic of Ireland · Girls between 2008 and 2025, ending at #718 and #266.
- Mirrored each other
Over 29 shared years in England and Wales · Girls, Riley rose about as far as Aileen fell — from #1434 and #1755 in 1996 to #2411 and #175 in 2024.
- Peaked in the same years
Both reached their highest recorded position in Republic of Ireland · Girls within 2 years — Aileen #335 in 2016, Riley #134 in 2018.
List by list
England and Wales · Girls29 shared years, 1996–2024
Aileen held the stronger position in 2 of those years, Riley in 27.
Highest recorded here: Aileen #1434 in 1996, Riley #175 in 2024.
The order changed in 1999: Riley moved ahead. In 1998 they stood at #1697 and #1823; by 1999 that had become #3900 and #1805.
Most recent shared year, 2024: Aileen #2411, Riley #175.
Republic of Ireland · Girls15 shared years, 2008–2025
Aileen held the stronger position in 3 of those years, Riley in 11.
Highest recorded here: Aileen #335 in 2016, Riley #134 in 2018.
The order changed in 2014: Riley moved ahead. In 2013 they stood at #459 and #747; by 2014 that had become #494 and #264.
Most recent shared year, 2025: Aileen #718, Riley #266.
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 | Riley |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | female | male |
| Meaning | Not yet recorded | An Irish surname (variant of Reilly) or an English surname meaning 'rye clearing' — its use as a first name is relatively modern, dating from the 1980s-90s. |
| Origin | Not yet recorded | Irish/English (surname origin), dual tradition |
| Pronunciation | Not yet recorded | /ˈɹaɪ.li/ |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, IE, NO | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ |
| Most recent popularity observation | Republic of Ireland · Girls #718 (2025) | New South Wales, Australia · Boys #66 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 88/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Riley has a recorded origin (Irish/English (surname origin), dual tradition); Aileen does not have one recorded yet.
- Aileen and Riley both have 2 syllables.
- A meaning is recorded for Riley; Aileen doesn't have one written yet.
- 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
Riley
Popularity journey
First recorded1996
First recorded at #1755 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 recorded1996–2025
Highest recorded position: #6 among boys in New South Wales, Australia, in 2008 (recorded 1996–2025).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #91 among girls in New South Wales, Australia, in 2025.
New South Wales, Australia · Girls