Lachlan
Lachlan was given to 468 boys in 2025, #606 among boys’ names; 6,398 Americans have been recorded with it since 1952 (Social Security Administration, published May 2026).
An estimated 6,330 Americans named Lachlan and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 9 years old and half are between 5 and 14.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Lachlan by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Lachlan mean?
Wiktionary, English section
Lachlan is “a male given name from Scottish Gaelic mainly used in Scotland, recently also popular in Australia.”
From Scottish Gaelic Lachlann, Lochlann (“land of the lochs, loch or fjord land, i.e. Scandinavia”), said to refer to an immigrant from Norway, a Norseman.
/ˈlæklən/
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Lachlan?
#606 among boys’ names, 2025
Lachlan rose from #767 in 2015 to #606 in 2025 among boys’ names; its share of boys born rose from 0.16 to 0.27 per 1,000.
477 babies in 2025, the peak
Lachlan peaked in 2025, when 477 babies were given it (468 boys, #606 among boys’ names). In 2024 it went to 389 boys.
Births by sex.
| Year | Births | Rank | Per 1,000 boys |
|---|---|---|---|
| 2025 | 468 | #606 | 0.27 |
| 2024 | 389 | #695 | 0.23 |
| 2023 | 333 | #771 | 0.19 |
| 2022 | 345 | #746 | 0.20 |
| 2021 | 356 | #726 | 0.20 |
| 2020 | 358 | #705 | 0.21 |
| 2019 | 369 | #690 | 0.21 |
| 2018 | 355 | #687 | 0.20 |
| 2017 | 353 | #699 | 0.19 |
| 2016 | 354 | #701 | 0.19 |
Every recorded year (44)
| Year | Births | Rank | Per 1,000 boys |
|---|---|---|---|
| 2015 | 311 | #767 | 0.16 |
| 2014 | 236 | #911 | 0.12 |
| 2013 | 205 | #976 | 0.11 |
| 2012 | 188 | #1,033 | 0.10 |
| 2011 | 178 | #1,062 | 0.09 |
| 2010 | 148 | #1,207 | 0.08 |
| 2009 | 152 | #1,188 | 0.08 |
| 2008 | 145 | #1,218 | 0.07 |
| 2007 | 124 | #1,357 | 0.06 |
| 2006 | 126 | #1,312 | 0.06 |
| 2005 | 107 | #1,395 | 0.05 |
| 2004 | 60 | #2,008 | 0.03 |
| 2003 | 65 | #1,828 | 0.03 |
| 2002 | 56 | #1,987 | 0.03 |
| 2001 | 46 | #2,227 | 0.02 |
| 2000 | 39 | #2,454 | 0.02 |
| 1999 | 39 | #2,315 | 0.02 |
| 1998 | 49 | #1,973 | 0.03 |
| 1997 | 30 | #2,650 | 0.02 |
| 1996 | 12 | #5,055 | 0.01 |
| 1995 | 17 | #3,774 | 0.01 |
| 1994 | 14 | #4,423 | 0.01 |
| 1993 | 13 | #4,592 | 0.01 |
| 1992 | 5 | #9,219 | under 0.01 |
| 1991 | 6 | #7,821 | under 0.01 |
| 1989 | 11 | #4,681 | 0.01 |
| 1988 | 8 | #5,487 | under 0.01 |
| 1983 | 5 | #6,838 | under 0.01 |
| 1982 | 7 | #5,347 | under 0.01 |
| 1970 | 5 | #5,120 | under 0.01 |
| 1964 | 5 | #4,354 | under 0.01 |
| 1959 | 6 | #3,815 | under 0.01 |
| 1956 | 5 | #4,220 | under 0.01 |
| 1952 | 5 | #4,025 | under 0.01 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Lachlan a boy’s or a girl’s name?
Of the 6,398 Americans recorded as Lachlan, 5% are girls and 95% boys. In 2025 it went to 9 girls and 468 boys.
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Lachlan: the SSA national file counts each sex separately.
How many people are named Lachlan, and how old are they?
6,330 alive in 2026, estimated
That is 99% of the 6,398 Americans ever recorded as Lachlan. The median Lachlan alive today is 9 years old; half are between 5 and 14.
The 2020 Census counted 4,177 people named Lachlan (219 women and girls, 3,958 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 4,108 born in the U.S. The Census count is 2% above that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Baby Boomers | 1946-1964 | 15 |
| Generation X | 1965-1980 | 4 |
| Millennials | 1981-1996 | 99 |
| Generation Z | 1997-2012 | 1,600 |
| Generation Alpha | 2013-2025 | 4,610 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Lachlan born?
The states with the most babies named Lachlan are California, Texas and Pennsylvania, with 23% of its births recorded by state in 2025.
| State | Births 2025 | Rank, boys | vs. national |
|---|---|---|---|
| California | 41 | #675 | 0.7× |
| Texas | 30 | #868 | 0.5× |
| Pennsylvania | 26 | #409 | 1.0× |
| New York | 22 | #675 | 0.8× |
| Washington | 20 | #374 | 2.0× |
| Minnesota | 20 | #308 | 1.6× |
| Colorado | 18 | #355 | 1.7× |
| North Carolina | 18 | #554 | 0.9× |
| Ohio | 18 | #569 | 0.8× |
| Florida | 17 | #869 | 0.6× |
Where Lachlan is more common than its national share predicts
Relative to its national share, Lachlan is most over-represented in Washington: since 1952 it was given 2.0 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Lachlan with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 3 names spelled alike, given to 11,428 babies since 1880, Lachlan is the most given (56% of them). In 2025 it was given to 477 of their 932 babies (51%), again the most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Lachlan
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Lachlan and names like it
- Compare Lachlan and LochlanBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sLachlan peaked in 2025.
- California’s most given namesThe state where SSA recorded the most babies named Lachlan since 1910.
- Scottish Gaelic namesWiktionary’s origin for Lachlan: every such name, by how often it is given.
- The top names of 2025The year the most babies were named Lachlan.
- The names of Generation AlphaMost people named Lachlan alive today were born 2013-2025.
- Names starting with LMost given first.