Namewise

Calum vs Justin

Calum and Justincompared 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.

  • Scotland · Boys

    In 2024, Calum was ranked #176 and Justin #727 among boys in Scotland.

  • Northern Ireland · Boys

    In 2021, Calum was ranked #192 and Justin #295 among boys in Northern Ireland.

  • Republic of Ireland · Boys

    In 2025, Calum was ranked #432 and Justin #402 among boys in Republic of Ireland.

  • England and Wales · Boys

    In 2024, Calum was ranked #1675 and Justin #638 among boys in England and Wales.

Calum and Justin over time

Calum and Justin appear together in 3 published lists, across 83 years of shared records. Calum held the stronger position in more years in 2 of them, Justin in 1.

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.

Justin reached its own highest recorded position earlier in 2 of those lists, Calum in 1. 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

    Calum and Justin changed places 5 times in England and Wales · Boys between 1996 and 2024, ending at #1675 and #638.

  • Longest-running competitions

    Calum and Justin were both ranked in Republic of Ireland · Boys for 34 years, from 1992 to 2025, ending at #432 and #402.

List by list

  • Republic of Ireland · Boys34 shared years, 19922025

    Calum held the stronger position in 22 of those years, Justin in 10.

    Highest recorded here: Calum #44 in 2006, Justin #120 in 2003.

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

    Most recent shared year, 2025: Calum #432, Justin #402.

  • England and Wales · Boys29 shared years, 19962024

    Calum held the stronger position in 12 of those years, Justin in 17.

    Highest recorded here: Calum #91 in 1996, Justin #154 in 2003.

    The order changed in 2016: Justin moved ahead. In 2015 they stood at #438 and #450; by 2016 that had become #659 and #428.

    Most recent shared year, 2024: Calum #1675, Justin #638.

  • Northern Ireland · Boys20 shared years, 19972021

    Calum held the stronger position in 20 of those years, Justin in 0.

    Highest recorded here: Calum #21 in 2006, Justin #103 in 2002.

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

    Most recent shared year, 2021: Calum #192, Justin #295.

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 Calum

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

Other comparisons involving Justin

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

Side by side

Side-by-side comparison of Calum, Justin
FieldCalumJustin
Record typeOfficial statistical record (evidence-only)Official statistical record (evidence-only)
Gender usagemalemale
MeaningNot yet recordedNot yet recorded
OriginNot yet recordedNot yet recorded
PronunciationNot yet recorded
Syllables22
Common variants / nicknamesNot yet recordedNot yet recorded
Recorded regional usageGB-ENW, GB-NIR, GB-SCT, IEAU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ
Most recent popularity observationRepublic of Ireland · Boys #432 (2025)Republic of Ireland · Boys #402 (2025)
Pronunciation clarity (demonstration score)Not yet recordedNot yet recorded
Spelling simplicity (demonstration score)94/10088/100
International familiarity (demonstration score)100/100100/100
Data Confidencemediummedium

What the data shows

  • Calum and Justin both have 2 syllables.
  • Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.

How each name got here

Calum

Popularity journey

  1. First recorded1992

    First recorded at #298 among boys in Republic of Ireland in 1992 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    Republic of Ireland · Boys

  2. Highest recorded1997–2024

    Highest recorded position: #21 among boys in Northern Ireland, in 2006 (recorded 1997–2024).

    Northern Ireland · Boys

  3. Most recent2025

    Most recently recorded at #432 among boys in Republic of Ireland, in 2025.

    Republic of Ireland · Boys

Justin

Popularity journey

  1. First recorded1964

    First recorded at #139 among boys in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    Republic of Ireland · Boys

  2. Highest recorded1966–2010

    Highest recorded position: #24 among boys in New South Wales, Australia, in 1990 (recorded 1966–2010).

    New South Wales, Australia · Boys

  3. Most recent2025

    Most recently recorded at #402 among boys in Republic of Ireland, in 2025.

    Republic of Ireland · Boys