Lachlan
Boy name · #606 in 2025 · Uniqueness 48/100
Lachlan is currently the #606 boy name in the United States — 468 babies received it in 2025. A decade ago it stood at #767, so the name has been rising over the past ten years. Roughly one in every 3,846 boys born in 2025 was named Lachlan.
The 73-year story
Lachlan first appears in the Social Security records in 1952, when 5 boys received the name. Its all-time peak is essentially right now: 2025, with 468 babies and a rank of #606. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Lachlan per year, 1880–2025. Source: SSA.
Unlock the 5-year forecast and compare Lachlan against up to 5 other names.
Uniqueness: will there be another Lachlan in class?
Lachlan scores 48 out of 100 on our uniqueness scale, which blends current rarity with five-year momentum — putting it in the "distinctive" band. That middle band is the sweet spot many parents hunt for: recognizable without being everywhere.
Where Lachlan is most common
Geography matters for names, and Lachlan is no exception. In 2025 the states with the most Lachlans were CA (41), TX (30), PA (26), NY (22), MN (20). Raw counts naturally favor populous states, but the spread still hints at where the name is part of the local naming culture.
Names like Lachlan
Statistically, parents drawn to Lachlan tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Lochlan, Kylan, Stellan, Dilan, and Lucian.
LochlanKylanStellanDilanLucianAslanRaylanKallan
Rank history (last 25 years)
| Year | Babies named Lachlan | Rank |
|---|---|---|
| 2025 | 468 | #606 |
| 2024 | 389 | #695 |
| 2023 | 333 | #771 |
| 2022 | 345 | #746 |
| 2021 | 356 | #725 |
| 2020 | 358 | #705 |
| 2019 | 369 | #689 |
| 2018 | 355 | #687 |
| 2017 | 353 | #698 |
| 2016 | 354 | #698 |
| 2015 | 311 | #767 |
| 2014 | 236 | #909 |
| 2013 | 205 | #974 |
| 2012 | 188 | #1032 |
| 2011 | 178 | #1056 |
| 2010 | 148 | #1206 |
| 2009 | 152 | #1186 |
| 2008 | 145 | #1211 |
| 2007 | 124 | #1350 |
| 2006 | 126 | #1306 |
| 2005 | 107 | #1390 |
| 2004 | 60 | #1989 |
| 2003 | 65 | #1815 |
| 2002 | 56 | #1974 |
| 2001 | 46 | #2217 |
Frequently asked questions
Is Lachlan a popular boy name?
Lachlan ranked #606 among boys in 2025 with 468 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #767.
When was the name Lachlan most popular?
Lachlan peaked in 2025, when 468 American boys received the name (ranked #606 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Lachlan?
In 2025, roughly 1 in 3,846 newborn American boys was named Lachlan. It scores 48/100 on our uniqueness scale (rarity blended with momentum), which we classify as "distinctive".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.