Arlo vs Kailum

Arlo and Kailumcompared 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 · Boys
In 2021, Arlo was ranked #20 and Kailum #3990 among boys in England and Wales.
Republic of Ireland · Boys
In 2021, Arlo was ranked #99 and Kailum #755 among boys in Republic of Ireland.

Arlo and Kailum over time

Arlo and Kailum appear together in 2 published lists, across 30 years of shared records. Arlo held the stronger position in more years in 2 of them, Kailum 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.

Kailum reached its own highest recorded position earlier in 2 of those lists, and Arlo 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 · Boys22 shared years, 1999–2021
Arlo held the stronger position in 19 of those years, Kailum in 3.
Highest recorded here: Arlo #20 in 2021, Kailum #953 in 2000.
The order changed in 2002: Arlo moved ahead. In 2001 they stood at #1949 and #1202; by 2002 that had become #848 and #1519.
Most recent shared year, 2021: Arlo #20, Kailum #3990.
Republic of Ireland · Boys8 shared years, 2009–2021
Arlo held the stronger position in 7 of those years, Kailum in 1.
Highest recorded here: Arlo #99 in 2021, Kailum #401 in 2012.
The order between them never changed and held in this list.
Most recent shared year, 2021: Arlo #99, Kailum #755.

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 Arlo, Kailum
Field	Arlo	Kailum
Record type	Editorially researched profile	Official statistical record (evidence-only)
Gender usage	male	male
Meaning	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).	Not yet recorded
Origin	Irish (place name origin, via literary adaptation)	Not yet recorded
Pronunciation	/ˈɑɹ.loʊ/	Not yet recorded
Syllables	2	2
Common variants / nicknames	Not yet recorded	Not yet recorded
Recorded regional usage	AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ	GB-ENW, IE
Most recent popularity observation	New South Wales, Australia · Boys #47 (2025)	Republic of Ireland · Boys #755 (2021)
Pronunciation clarity (demonstration score)	90/100	Not yet recorded
Spelling simplicity (demonstration score)	95/100	88/100
International familiarity (demonstration score)	100/100	60/100
Data Confidence	medium	medium

What the data shows

Arlo has a recorded origin (Irish (place name origin, via literary adaptation)); Kailum does not have one recorded yet.
Arlo and Kailum both have 2 syllables.
A meaning is recorded for Arlo; Kailum doesn't have one written yet.
Both names have recorded usage in GB-ENW, IE.

How each name got here

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

Kailum

Popularity journey

First recorded1996
First recorded at #2357 among boys in England and Wales in 1996 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Boys
Highest recorded2003–2021
Highest recorded position: #401 among boys in Republic of Ireland, in 2012 (recorded 2003–2021).
Republic of Ireland · Boys
Most recent2021
Most recently recorded at #3990 among boys in England and Wales, in 2021.
England and Wales · Boys