Lachlan
Lachlan reached its high-water mark in 2025 at number 606, and has been recorded 6,398 times in all. In 2025 it ranked 606th. About 6,300 Lachlans are alive in the United States today, and half of them are over 8.
Popularity, 1880–2025
girls named Lachlan boys named Lachlan
By the numbers
- Total US births
- 6,398
- Estimated living today
- 6,300
- Median age today
- 8
- Peak year
- 2025
- Best rank
- 606th
- Rank in 2025
- 606th
- First recorded
- 1952
- Girls / boys
- 290 / 6,108
How old the living Lachlans are
born that year still alive today
Of the 6,398 babies given the name since 1952, about 6,300 are alive — 99 in every hundred. Roughly 5,500 of them are children and 11 are 65 or over. The dotted line is the median: half were born before 2017 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Where the name comes from
Origin Scottish Gaelic
From Lochlann (“land of the lochs, loch or fjord land, i.e. Scandinavia”), said to refer to an immigrant from Norway, a Norseman.
Etymology from Wiktionary, used under CC BY-SA 4.0.
Notable Lachlans
- Lachlan Macquarie (1762–1824)Scottish British army officer and New South Wales colonial administrator
- Lachlan Murdoch (born 1971)British-American-Australian businessman
- Lachlan Morton (born 1992)Australian road cyclist
- Lachlan Watson (born 2001)American actor
- Lachlan Bayliss (born 2002)Australian association footballer
- Lachlan Wales (born 1997)Australian association football player
- Lachlan Buchanan (born 1987)Australian actor
- Lachlan Kennedy (born 2003)Australian athlete
People named Lachlan with articles in the most Wikipedia languages. Data from Wikidata (CC0).
Where Lachlan is most common
Relative to how many babies each state records, Lachlan is most concentrated in Washington (4.0×), Colorado (3.6×), Utah (3.2×), Idaho (2.5×).
Total births recorded in each state since 1910. Browse names by state.
Names of 2025
The most popular boys’ names the year Lachlan peaked:
Lachlan elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| New Zealand boys | Lachlan | 3,813 | 22nd |
| England and Wales boys | Lachlan | 2,417 | 283rd |
| Scotland boys | Lachlan | 1,494 | 75th |
| Ireland boys | Lachlan | 212 | 263rd |
| Northern Ireland boys | Lachlan | 54 | 226th |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Lachlan among the living
How many people each country's register counts under the name, rather than how many were given it in any one year. Each register was read on one date, and they are not the same date.
| Country | Spelling | First forename | Any forename |
|---|---|---|---|
| Finland boys | Lachlan | 5 | 10 |
A count of people on a register – Finland on 4 August 2026 – and not of births, so it cannot be compared with the figures above. Names with very few bearers are withheld, and a dash in the first-forename column means the register would not say rather than that nobody goes by it.
Related names
Lachlan against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.