How Many People Are Named Lachlann?
An estimated 49 people in the United States have the first name Lachlann. It is almost exclusively a male name. The average bearer is 6 years old, and Lachlann peaked in popularity in 2023 with 13 births that year.
Below you will find a full statistical profile of Lachlann as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, state-by-state birth registrations, and, when available, a 2020 Census snapshot showing who had the name at that point in time. You can also check how many people share the full name Lachlann paired with any surname.
Key Insights
- Lachlann is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
49
About 1 in 6,994,986 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
6
years old
Peak Year
2023
13 births
Total Registered
49
since 1880
Gender Distribution for Lachlann
Lachlann is almost exclusively a male name. Out of 49 total births registered, 100.0% were male.
Lachlann as a male name
Ranked #11,723 in 2024
6 male births in 2024
Peak: 2023 (13 births)
Lachlann: Popularity Over Time
SSA records for Lachlann span from the 2010s to the 2020s, covering 2 decades of naming data. The most popular decade for this name was the 2020s, when 25 babies were registered. Lachlann remains highly popular today, with recent registration numbers near its historical peak.
Lachlann by Decade
How has Lachlann tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Lachlann + Last Name Combinations
How many people share a full name with Lachlann as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Lachlann
Other first names starting with L with a similar number of bearers.
Lachlann: Questions and Answers
How many people in the U.S. are named Lachlann?
We estimate approximately 49 people named Lachlann are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 6,994,986 Americans share this first name.
Is Lachlann a common name?
Lachlann is classified as "Very Rare" and is more popular than 54% of all first names in the SSA database. A total of 49 births have been registered with this name since 1880.
When was Lachlann most popular?
Lachlann reached peak popularity in 2023, when 13 babies were given this name. The average age of a living person named Lachlann is approximately 6 years old, reflecting when the name was most commonly given.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Lachlann was given to babies from 1880 through 2024, which is why it is the best tool on the page for seeing long-run naming trends.
Is Lachlann a male name?
Lachlann is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
Why can Lachlann have a lot of living bearers even if it is not trendy now?
Because a name can build up a large population over many decades. Lachlann peaked in 2023, and the average living bearer is about 6 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Lachlann Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Lachlann Smith, Lachlann Johnson, Lachlann Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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