Caleb vs Zack

Caleb and Zackcompared 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.

Northern Ireland · Boys
In 2024, Caleb was ranked #26 and Zack #177 among boys in Northern Ireland.
Scotland · Boys
In 2024, Caleb was ranked #42 and Zack #181 among boys in Scotland.
England and Wales · Boys
In 2024, Caleb was ranked #75 and Zack #338 among boys in England and Wales.
Republic of Ireland · Boys
In 2025, Caleb was ranked #108 and Zack #179 among boys in Republic of Ireland.

Caleb and Zack over time

Caleb and Zack appear together in 3 published lists, across 85 years of shared records. Caleb held the stronger position in more years in 3 of them, Zack in 0.

In none of those lists did their order change and stay changed.

Zack reached its own highest recorded position earlier in 3 of those lists, and Caleb 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
Caleb and Zack changed places 8 times in Republic of Ireland · Boys between 1996 and 2025, ending at #108 and #179.
Closest over the longest run
Across 29 shared years in Republic of Ireland · Boys, Caleb and Zack averaged 42.3 places apart, ending at #108 and #179.
Mirrored each other
Over 29 shared years in England and Wales · Boys, Caleb rose about as far as Zack fell — from #183 and #188 in 1996 to #75 and #338 in 2024.

List by list

England and Wales · Boys29 shared years, 1996–2024
Caleb held the stronger position in 29 of those years, Zack in 0.
Highest recorded here: Caleb #72 in 2023, Zack #138 in 2010.
The order between them never changed and held in this list.
Most recent shared year, 2024: Caleb #75, Zack #338.
Republic of Ireland · Boys29 shared years, 1996–2025
Caleb held the stronger position in 22 of those years, Zack in 7.
Highest recorded here: Caleb #91 in 2024, Zack #140 in 2021.
The order between them never changed and held in this list.
Most recent shared year, 2025: Caleb #108, Zack #179.
Northern Ireland · Boys27 shared years, 1998–2024
Caleb held the stronger position in 27 of those years, Zack in 0.
Highest recorded here: Caleb #20 in 2023, Zack #135 in 2011.
The order between them never changed and held in this list.
Most recent shared year, 2024: Caleb #26, Zack #177.

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 Caleb

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

Oliver vs Caleb
Oliver and Caleb 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.
Oliver · Caleb · 42 shared years, 1983–2025 · Moved together in several countries
Alfie vs Caleb
Alfie and Caleb 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.
Alfie · Caleb · 30 shared years, 1996–2025 · Moved together in several countries
Archie vs Caleb
Archie and Caleb 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.
Archie · Caleb · 30 shared years, 1996–2025 · Moved together in several countries
Arthur vs Caleb
Arthur and Caleb 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.
Arthur · Caleb · 34 shared years, 1983–2025 · Moved together in several countries

Side by side

Side-by-side comparison of Caleb, Zack
Field	Caleb	Zack
Record type	Official statistical record (evidence-only)	Official statistical record (evidence-only)
Gender usage	male	male
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	AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ	GB-ENW, GB-NIR, GB-SCT, IE
Most recent popularity observation	Republic of Ireland · Boys #108 (2025)	Republic of Ireland · Boys #179 (2025)
Pronunciation clarity (demonstration score)	Not yet recorded	Not yet recorded
Spelling simplicity (demonstration score)	94/100	95/100
International familiarity (demonstration score)	100/100	100/100
Data Confidence	medium	medium

What the data shows

Caleb has 2 syllables, compared with 1 for Zack.
Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.

How each name got here

Caleb

Popularity journey

First recorded1982
First recorded at #98 among boys in New Zealand in 1982 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New Zealand · Boys
Highest recorded1982–2023
Highest recorded position: #12 among boys in New Zealand, in 1999 (recorded 1982–2023).
New Zealand · Boys
Most recent2025
Most recently recorded at #108 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys

Zack

Popularity journey

First recorded1996
First recorded at #188 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 recorded1998–2024
Highest recorded position: #135 among boys in Northern Ireland, in 2011 (recorded 1998–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #179 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys