Aileen vs Arlo

Aileen and Arlocompared 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 Arlo #1894 among girls in England and Wales.

Aileen and Arlo over time

Aileen and Arlo appear together in 1 published list, across 10 years of shared records. Neither was ahead in more lists than the other.

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.

Peaked in the same years
Both reached their highest recorded position in England and Wales · Girls within 2 years — Aileen #2201 in 2023, Arlo #1469 in 2023.

List by list

England and Wales · Girls10 shared years, 2015–2024
Aileen held the stronger position in 5 of those years, Arlo in 5.
Highest recorded here: Aileen #2201 in 2023, Arlo #1469 in 2023.
The order changed in 2021: Arlo moved ahead. In 2020 they stood at #2449 and #2843; by 2021 that had become #4634 and #1785.
Most recent shared year, 2024: Aileen #2411, Arlo #1894.

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.

Where to go next

Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.

Other comparisons involving Arlo

Pairs where Arlo shares a published list with another name, each measured inside one registrar's own list.

Arthur vs Arlo
Arthur and Arlo both rose over the same years in 4 registrars — England and Wales · Boys; New Zealand · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Arthur · Arlo · 27 shared years, 1999–2025 · Moved together in several countries
Theo vs Arlo
Theo and Arlo both rose over the same years in 4 registrars — England and Wales · Boys; New Zealand · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Theo · Arlo · 27 shared years, 1999–2025 · Moved together in several countries
Arlo vs Ezra
Arlo and Ezra both rose over the same years in 3 registrars — England and Wales · Boys; New Zealand · Boys; Northern Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Arlo · Ezra · 26 shared years, 1999–2024 · Moved together in several countries
Arlo vs Freddie
Arlo and Freddie both rose over the same years in 3 registrars — England and Wales · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Arlo · Freddie · 27 shared years, 1999–2025 · Moved together in several countries

Side by side

Side-by-side comparison of Aileen, Arlo
Field	Aileen	Arlo
Record type	Official statistical record (evidence-only)	Editorially researched profile
Gender usage	female	male
Meaning	Not yet recorded	Meaning uncertain — likely derived by Edmund Spenser from the real Irish place name Aherlow ('between two highlands') for the fictional Arlo Hill in The Faerie Queene (1590).
Origin	Not yet recorded	Irish (place name origin, via literary adaptation)
Pronunciation	Not yet recorded	/ˈɑɹ.loʊ/
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 #47 (2025)
Pronunciation clarity (demonstration score)	Not yet recorded	90/100
Spelling simplicity (demonstration score)	88/100	95/100
International familiarity (demonstration score)	100/100	100/100
Data Confidence	medium	medium

What the data shows

Arlo has a recorded origin (Irish (place name origin, via literary adaptation)); Aileen does not have one recorded yet.
Aileen and Arlo both have 2 syllables.
A meaning is recorded for Arlo; 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

Arlo

Popularity journey

First recorded1999
First recorded at #2943 among boys in England and Wales in 1999 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Boys
Highest recorded2013–2023
Highest recorded position: #10 among boys in New Zealand, in 2017 (recorded 2013–2023).
New Zealand · Boys
Most recent2025
Most recently recorded at #47 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys