Namewise

Callum vs Jack

Callum and Jackcompared 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.

  • New Zealand · Boys

    In 2009, Callum was ranked #78 and Jack #1 among boys in New Zealand.

  • Republic of Ireland · Boys

    In 2025, Callum was ranked #49 and Jack #2 among boys in Republic of Ireland.

  • New South Wales, Australia · Boys

    In 2012, Callum was ranked #99 and Jack #4 among boys in New South Wales, Australia.

  • Northern Ireland · Boys

    In 2024, Callum was ranked #54 and Jack #4 among boys in Northern Ireland.

  • Scotland · Boys

    In 2024, Callum was ranked #62 and Jack #7 among boys in Scotland.

  • England and Wales · Boys

    In 2025, Callum was ranked #251 and Jack #24 among boys in England and Wales.

Callum and Jack over time

Callum and Jack appear together in 5 published lists, across 139 years of shared records. Jack held the stronger position in more years in 5 of them, Callum in 0.

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

Jack reached its own highest recorded position earlier in 3 of those lists, Callum in 2. 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

    Callum and Jack changed places 4 times in New Zealand · Boys between 1988 and 2009, ending at #78 and #1.

  • Closest over the longest run

    Across 22 shared years in New Zealand · Boys, Callum and Jack averaged 34.5 places apart, ending at #78 and #1.

  • Mirrored each other

    Over 28 shared years in Northern Ireland · Boys, Jack rose about as far as Callum fell — from #34 and #8 in 1997 to #54 and #4 in 2024.

  • Longest-running competitions

    Callum and Jack were both ranked in England and Wales · Boys for 30 years, from 1996 to 2025, ending at #251 and #24.

  • Peaked in the same years

    Both reached their highest recorded position in England and Wales · Boys within 2 years — Callum #8 in 1998, Jack #1 in 1996.

List by list

  • Republic of Ireland · Boys36 shared years, 1989–2025

    Callum held the stronger position in 0 of those years, Jack in 36.

    Highest recorded here: Callum #22 in 2006, Jack #1 in 2000.

    The order between them never changed and held in this list.

    Most recent shared year, 2025: Callum #49, Jack #2.

  • England and Wales · Boys30 shared years, 1996–2025

    Callum held the stronger position in 0 of those years, Jack in 30.

    Highest recorded here: Callum #8 in 1998, Jack #1 in 1996.

    The order between them never changed and held in this list.

    Most recent shared year, 2025: Callum #251, Jack #24.

  • Northern Ireland · Boys28 shared years, 1997–2024

    Callum held the stronger position in 0 of those years, Jack in 28.

    Highest recorded here: Callum #8 in 2006, Jack #1 in 2001.

    The order between them never changed and held in this list.

    Most recent shared year, 2024: Callum #54, Jack #4.

  • New South Wales, Australia · Boys23 shared years, 1990–2012

    Callum held the stronger position in 0 of those years, Jack in 23.

    Highest recorded here: Callum #51 in 1998, Jack #1 in 2003.

    The order between them never changed and held in this list.

    Most recent shared year, 2012: Callum #99, Jack #4.

  • New Zealand · Boys22 shared years, 1988–2009

    Callum held the stronger position in 2 of those years, Jack in 20.

    Highest recorded here: Callum #27 in 2000, Jack #1 in 2005.

    The order between them never changed and held in this list.

    Most recent shared year, 2009: Callum #78, Jack #1.

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 Callum

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

Other comparisons involving Jack

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

Other pairs with the same kind of relationship

Pairs that qualify under the same rule as this one — peaked in the same years.

All peaked in the same years→

Other pairs from England and Wales lists

Pairs measured inside England and Wales's own published lists, where this pair's strongest relationship is also recorded. Positions in these lists are not comparable with another registrar's.

England and Wales overview→

Other pairs ranked together in the 2020s

Pairs both ranked in the same published list at some point between 2020 and 2029.

The 2020s across all registrars→

Side by side

Side-by-side comparison of Callum, Jack
FieldCallumJack
Record typeEditorially researched profileEditorially researched profile
Gender usagemalemale
MeaningTraditionally associated with 'dove', via its connection to Saint Columba.God is gracious (via John), though now used as an independent name.
OriginScottish Gaelic (Anglicised form of Calum), from Latin columbaEnglish, historically a diminutive of John
Pronunciation/ˈkæləm//ˈdʒæk/
Syllables21
Common variants / nicknamesNot yet recordedJankin
Recorded regional usageAU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZAU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ
Most recent popularity observationRepublic of Ireland · Boys #49 (2025)Republic of Ireland · Boys #2 (2025)
Pronunciation clarity (demonstration score)90/10090/100
Spelling simplicity (demonstration score)88/10095/100
International familiarity (demonstration score)100/100100/100
Data Confidencemediumhigh

What the data shows

  • Callum is recorded with a Scottish Gaelic (Anglicised form of Calum), from Latin columba origin, while Jack is recorded with a English, historically a diminutive of John origin.
  • Callum has 2 syllables, compared with 1 for Jack.
  • Callum's recorded meaning differs from Jack's — see the table above for each.
  • Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ.
  • The available evidence gives Callum a "medium" Data Confidence level and Jack a "high" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.

How each name got here

Callum

Popularity journey

  1. First recorded1988

    First recorded at #80 among boys in New Zealand in 1988 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    New Zealand · Boys

  2. Highest recorded1996–2025

    Highest recorded position: #8 among boys in England and Wales, in 1998 (recorded 1996–2025).

    England and Wales · Boys

  3. Most recent2025

    Most recently recorded at #251 among boys in England and Wales, in 2025.

    England and Wales · Boys

Jack

Popularity journey

  1. First recorded1945

    First recorded at #171 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    Norway · Boys

  2. Highest recorded1996–2025

    Highest recorded position: #1 among boys in England and Wales, in 1996 (recorded 1996–2025).

    England and Wales · Boys

  3. Most recent2025

    Most recently recorded at #24 among boys in England and Wales, in 2025.

    England and Wales · Boys