Lachlan vs Lucas
Lachlan 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.
New South Wales, Australia · Boys
In 2025, Lachlan was ranked #34 and Lucas #14 among boys in New South Wales, Australia.
New Zealand · Boys
In 2023, Lachlan was ranked #34 and Lucas #16 among boys in New Zealand.
Scotland · Boys
In 2024, Lachlan was ranked #88 and Lucas #23 among boys in Scotland.
England and Wales · Boys
In 2024, Lachlan was ranked #328 and Lucas #25 among boys in England and Wales.
Northern Ireland · Boys
In 2024, Lachlan was ranked #278 and Lucas #30 among boys in Northern Ireland.
Republic of Ireland · Boys
In 2025, Lachlan was ranked #317 and Lucas #64 among boys in Republic of Ireland.
Lachlan and Lucas over time
Lachlan and Lucas appear together in 5 published lists, across 119 years of shared records. Lucas held the stronger position in more years in 4 of them, Lachlan in 1.
The order between them changed and held in 2 of those lists — a change in that published list, never a claim that one name displaced the other.
Lucas reached its own highest recorded position earlier in 3 of those lists, Lachlan 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.
- One moved ahead of the other
In 2006, Lucas moved ahead of Lachlan in New Zealand · Boys — #38 and #54 the year before became #32 and #31.
- Closest over the longest run
Across 33 shared years in New South Wales, Australia · Boys, Lachlan and Lucas averaged 31.8 places apart, ending at #34 and #14.
- Longest-running competitions
Lachlan and Lucas were both ranked in New South Wales, Australia · Boys for 33 years, from 1982 to 2025, ending at #34 and #14.
- Peaked in the same years
Both reached their highest recorded position in Republic of Ireland · Boys within 2 years — Lachlan #263 in 2016, Lucas #55 in 2018.
List by list
New South Wales, Australia · Boys33 shared years, 1982–2025
Lachlan held the stronger position in 17 of those years, Lucas in 16.
Highest recorded here: Lachlan #2 in 2005, Lucas #2 in 2011.
The order between them never changed and held in this list.
Most recent shared year, 2025: Lachlan #34, Lucas #14.
England and Wales · Boys29 shared years, 1996–2024
Lachlan held the stronger position in 0 of those years, Lucas in 29.
Highest recorded here: Lachlan #328 in 2024, Lucas #17 in 2009.
The order between them never changed and held in this list.
Most recent shared year, 2024: Lachlan #328, Lucas #25.
Republic of Ireland · Boys24 shared years, 1997–2025
Lachlan held the stronger position in 0 of those years, Lucas in 24.
Highest recorded here: Lachlan #263 in 2016, Lucas #55 in 2018.
The order between them never changed and held in this list.
Most recent shared year, 2025: Lachlan #317, Lucas #64.
New Zealand · Boys23 shared years, 2001–2023
Lachlan held the stronger position in 5 of those years, Lucas in 18.
Highest recorded here: Lachlan #13 in 2018, Lucas #4 in 2011.
The order changed in 2006: Lucas moved ahead. In 2005 they stood at #38 and #54; by 2006 that had become #32 and #31.
Most recent shared year, 2023: Lachlan #34, Lucas #16.
Northern Ireland · Boys10 shared years, 1998–2024
Lachlan held the stronger position in 1 of those years, Lucas in 9.
Highest recorded here: Lachlan #226 in 2021, Lucas #22 in 2013.
The order changed in 2004: Lucas moved ahead. In 2003 they stood at #240 and #272; by 2004 that had become #264 and #149.
Most recent shared year, 2024: Lachlan #278, Lucas #30.
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.
Side by side
| Field | Lachlan | Lucas |
|---|---|---|
| Record type | Editorially researched profile | Editorially researched profile |
| Gender usage | male | male |
| Meaning | Traditionally understood as 'Viking' or 'Scandinavian' via its root name — someone associated with the land of the Norsemen. A secondary reading of that root gives 'land of the lakes'. | 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. |
| Origin | Scottish Gaelic (Anglicised), from Lochlann ('Scandinavia') | Latin, via Greek Loukas |
| Pronunciation | /ˈlɒklən/ | /ˈluːkəs/ |
| 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 | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | New South Wales, Australia · Boys #34 (2025) | New South Wales, Australia · Boys #14 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | 90/100 |
| Spelling simplicity (demonstration score) | 82/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Lachlan is recorded with a Scottish Gaelic (Anglicised), from Lochlann ('Scandinavia') origin, while Lucas is recorded with a Latin, via Greek Loukas origin.
- Lachlan and Lucas both have 2 syllables.
- Lachlan'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, NZ.
How each name got here
Lachlan
Popularity journey
First recorded1982
First recorded at #95 among boys in New South Wales, Australia in 1982 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New South Wales, Australia · Boys
Highest recorded1982–2025
Highest recorded position: #2 among boys in New South Wales, Australia, in 2005 (recorded 1982–2025).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #34 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys
Lucas
Popularity journey
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
Highest recorded1980–2025
Highest recorded position: #2 among boys in New South Wales, Australia, in 2011 (recorded 1980–2025).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #14 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys