Lachlan
Masculine · “from Lochlann”
Lachlan is given to both — 6,108 boys and 290 girls since 1880. See other names given to both
Lachlan comes out of Gaelic Scotland, where it was the name of chiefs of Clan MacLachlan on the shores of Loch Fyne, and it carries the sound of the word loch inside it. It traveled far: Lachlan Macquarie, the early-nineteenth-century governor of New South Wales, left the name written across Australian maps, where a river still bears it. In English mouths it settles into two easy syllables and a ready-made short form, Lachie.
How old is the name Lachlan?
Lachlan first appears in US birth records in 1952 — 73 years ago. The typical Lachlan is a kid of about 8 — this name's wave is very recent. About 6,100 people named Lachlan are estimated to be alive in the US today.
When was the name Lachlan most popular?
Lachlan peaked in 2025, reaching #606 nationally. Today it ranks #606, exactly where it peaked. See the whole 2025 chart.
Where it comes from
From Lochlann to Lachlan
The story of Lachlan
The name begins as Scottish Gaelic Lachlann, a form of Lochlann, the word the Gaels used for Scandinavia and its people. It became a hereditary favorite among the MacLachlans of Argyll — the surname itself simply means 'son of Lachlann' — and stayed in Highland use for centuries. In Ireland the same root gave the surnames Ó Lochlainn and Loughlin. It reached the wider English-speaking world through Scottish emigration, and Lachlan Macquarie's years in New South Wales fixed it in Australian place names, including the Lachlan River.
Meaning
from Lochlann — the Gaelic name for Scandinavia, so 'Norseman'
Lochlann is often read literally as 'land of the lochs' or 'land of the fjords', which is how the Gaels described the Norse homelands. Both the literal and the applied sense point the same way.
How the name formed
- Lochlann
- Lachlann
- Lachlan
Related forms: Lachlann · Lochlainn · Laughlin · Loughlin · Lachie
Pronouncing Lachlan
LOCK-lun
The first syllable is the Scottish loch, though most American speakers say a plain 'lock'. You will also hear LAK-lun, and some readers guess LATCH-lan on first sight.
Nicknames for Lachlan
High
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1952
- Most boys named
- 2025468 — the highest on record
- Peak rank
- #606reached in 2025
- Change vs 2024
- +20.3%468 in 2025, from 389
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Lachlan in other languages
The same name elsewhere
- Lachlann in Scottish Gaelic — same name
- Lochlainn in Irish — related form
- Laughlin in Irish (anglicized) — related form
- Loughlin in English — related form
- Lachie in Scots — spelling variant
Strongest US states over the last decade: California, Texas, Washington. International figures from National Records of Scotland. Sources
Lachlans among us
people named Lachlan are estimated to be alive in the US today
About 1 boy in 3,650 born in 2025 was named Lachlan
Estimated from SSA birth records and published actuarial life tables. Method
Is it right for you
What happens to a name after it peaks
The Durell test
Every popular name lives one long story — a climb, a peak, a slow settling back. Lachlan's later chapters haven't been written yet, so we borrowed them: Durell climbed just as high around 1985, and its whole arc is on record. Line the two peaks up, and Durell's path sketches the road Lachlan is walking now.
Lachlan sits in the calm middle of the cycle — neither chasing a wave nor sliding off one. Middle-of-the-cycle names age slowly and predictably.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Where Lachlan is headed
Lachlan should hold steady through 2030 — the curve is flat, and flat curves are the most predictable kind.
Medium confidence — fitted on official counts through 2025.
A damped-trend projection of the official birth data — a sketch of momentum, not a promise. Every name's forecast, ranked.
Lachlan beside its neighbors
The names ranked closest to Lachlan in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- The meaning is settled and easy to tell: Lochlann, the Gaelic word for Scandinavia and the Norse.
- Comes with short forms already in real use — Lachie, Lochie, Lockie — so nothing has to be invented.
- A documented Highland line stretching back centuries, preserved in the surname MacLachlan and the Irish Loughlin.
- One dominant spelling in English, which keeps the written form stable even where the sound wobbles.
- Two clear syllables with the stress on the first, which travels well across accents.
- The loch sound has no natural home in American English, so expect a mix of LOCK-lun, LAK-lun and the occasional LATCH-lan, and expect to correct it politely for years.
- Because it is written the way it is, people who have heard it but not seen it may try Lockland, Locklan or Loughlan. The spelling is standard; the familiarity is not yet.
- This is a name a child will likely carry alone in their class. That means no surname initial, and also no shortcut — it gets explained more often than a Jack or a Liam would.
Nobody names a baby alone.
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What they receive
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Lachlan
Masculine · #606 in the U.S.
Frequently asked
- How many Lachlans are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 6,100 people named Lachlan are estimated to be alive in the US today.
- How popular is the name Lachlan in 2025?
- Lachlan ranks #606 among US boy names in 2025, with 468 babies given the name.
- How rare is the name Lachlan?
- About 1 in every 3,650 US boys born in 2025 was named Lachlan — 468 in all.
- Will my child share the name Lachlan with classmates?
- Lachlan will almost certainly be the only one in school.
Ranked beside Lachlan
Names sitting at a similar level of popularity right now.
Roland#607 · Zaiden#607 · Abdiel#607 · Nikolai#605 · Amiri#604 · Caiden#602 · Eziah#610 · Reese#602
Looking for what else is popular rather than what resembles Lachlan? See the current top 100.
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US figures from the Social Security Administration; international figures from national statistics agencies. 1880–2025. Data & methodology
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