Namewise

Liam vs Lucas

Liam and Lucascompared 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.

  • Norway · Boys

    In 2025, Liam was ranked #7 and Lucas #24 among boys in Norway.

  • Republic of Ireland · Boys

    In 2025, Liam was ranked #7 and Lucas #64 among boys in Republic of Ireland.

  • New South Wales, Australia · Boys

    In 2025, Liam was ranked #15 and Lucas #14 among boys in New South Wales, Australia.

  • New Zealand · Boys

    In 2023, Liam was ranked #17 and Lucas #16 among boys in New Zealand.

  • Scotland · Boys

    In 2024, Liam was ranked #47 and Lucas #23 among boys in Scotland.

  • Northern Ireland · Boys

    In 2024, Liam was ranked #42 and Lucas #30 among boys in Northern Ireland.

  • England and Wales · Boys

    In 2025, Liam was ranked #68 and Lucas #32 among boys in England and Wales.

Liam and Lucas over time

Liam and Lucas appear together in 6 published lists, across 184 years of shared records. Lucas held the stronger position in more years in 4 of them, Liam in 2.

The order between them changed and held in 3 of those lists — a change in that published list, never a claim that one name displaced the other.

Each reached its own highest recorded position first in 3 of the lists they share.

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.

  • One moved ahead of the other

    In 2009, Lucas moved ahead of Liam in England and Wales · Boys — #22 and #36 the year before became #24 and #17.

  • Closest over the longest run

    Across 30 shared years in England and Wales · Boys, Liam and Lucas averaged 51.1 places apart, ending at #68 and #32.

  • Longest-running competitions

    Liam and Lucas were both ranked in England and Wales · Boys for 30 years, from 1996 to 2025, ending at #68 and #32.

  • Peaked in the same years

    Both reached their highest recorded position in New Zealand · Boys within 2 years — Liam #1 in 2010, Lucas #4 in 2011.

List by list

  • Republic of Ireland · Boys36 shared years, 1979–2025

    Liam held the stronger position in 36 of those years, Lucas in 0.

    Highest recorded here: Liam #6 in 2021, Lucas #55 in 2018.

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

    Most recent shared year, 2025: Liam #7, Lucas #64.

  • Norway · Boys34 shared years, 1987–2025

    Liam held the stronger position in 14 of those years, Lucas in 20.

    Highest recorded here: Liam #3 in 2015, Lucas #12 in 2012.

    The order changed in 2012: Liam moved ahead. In 2011 they stood at #22 and #14; by 2012 that had become #8 and #12.

    Most recent shared year, 2025: Liam #7, Lucas #24.

  • New South Wales, Australia · Boys33 shared years, 1983–2025

    Liam held the stronger position in 15 of those years, Lucas in 18.

    Highest recorded here: Liam #6 in 2020, Lucas #2 in 2011.

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

    Most recent shared year, 2025: Liam #15, Lucas #14.

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

    Liam held the stronger position in 13 of those years, Lucas in 17.

    Highest recorded here: Liam #10 in 1996, Lucas #17 in 2009.

    The order changed in 2009: Lucas moved ahead. In 2008 they stood at #22 and #36; by 2009 that had become #24 and #17.

    Most recent shared year, 2025: Liam #68, Lucas #32.

  • Northern Ireland · Boys28 shared years, 1997–2024

    Liam held the stronger position in 13 of those years, Lucas in 14.

    Highest recorded here: Liam #35 in 2008, Lucas #22 in 2013.

    The order changed in 2024: Lucas moved ahead. In 2023 they stood at #52 and #61; by 2024 that had become #42 and #30.

    Most recent shared year, 2024: Liam #42, Lucas #30.

  • New Zealand · Boys23 shared years, 2001–2023

    Liam held the stronger position in 15 of those years, Lucas in 8.

    Highest recorded here: Liam #1 in 2010, Lucas #4 in 2011.

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

    Most recent shared year, 2023: Liam #17, Lucas #16.

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 Liam

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

Other comparisons involving Lucas

Pairs where Lucas 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 New Zealand lists

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

New Zealand 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 Liam, Lucas
FieldLiamLucas
Record typeEditorially researched profileEditorially researched profile
Gender usagemalemale
MeaningA short form, inheriting its meaning from William — 'resolute protection' or 'will helmet'.The Latin form of the Greek name Loukas, ultimately linked to the English name Luke. The deeper root meaning is itself disputed — possibly a shortened form of 'from Lucania' (a region of southern Italy), or alternatively derived from the Latin name Lucius.
OriginIrish, short form of William (via Uilliam)Latin, via Greek Loukas
Pronunciation/ˈliːəm//ˈluːkəs/
Syllables12
Common variants / nicknamesNot yet recordedNot yet recorded
Recorded regional usageAU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZAU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ
Most recent popularity observationNorway · Boys #7 (2025)New South Wales, Australia · Boys #14 (2025)
Pronunciation clarity (demonstration score)90/10090/100
Spelling simplicity (demonstration score)95/10094/100
International familiarity (demonstration score)100/100100/100
Data Confidencemediummedium

What the data shows

  • Liam is recorded with a Irish, short form of William (via Uilliam) origin, while Lucas is recorded with a Latin, via Greek Loukas origin.
  • Liam has 1 syllable, compared with 2 for Lucas.
  • Liam's recorded meaning differs from Lucas's — see the table above for each.
  • Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ.

How each name got here

Liam

Popularity journey

  1. First recorded1964

    First recorded at #54 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 recorded1986–2023

    Highest recorded position: #1 among boys in New Zealand, in 2010 (recorded 1986–2023).

    New Zealand · Boys

  3. Most recent2025

    Most recently recorded at #68 among boys in England and Wales, in 2025.

    England and Wales · Boys

Lucas

Popularity journey

  1. First recorded1976

    First recorded at #607 among boys in Norway in 1976 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    Norway · Boys

  2. Highest recorded1980–2025

    Highest recorded position: #2 among boys in New South Wales, Australia, in 2011 (recorded 1980–2025).

    New South Wales, Australia · Boys

  3. Most recent2025

    Most recently recorded at #32 among boys in England and Wales, in 2025.

    England and Wales · Boys