Lachlan
Boy name · #606 in 2025 · Distinctive
How old is the name Lachlan? In official American birth records, Lachlan has been tracked continuously since 1952, giving it 73 years of documented American history.
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. Source: Official national birth records.
Unlock the 5-year forecast and compare Lachlan against up to 5 other names.
Uniqueness: will there be another Lachlan in class?
On our rarity read — which blends how common Lachlan is today with its five-year momentum — the name reads as "distinctive". 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. Adjusted for how many boys are born in each state, Lachlan is most common in MN (0.8 per 1,000), CO (0.7 per 1,000), UT (0.6 per 1,000), WA (0.6 per 1,000), WI (0.6 per 1,000) — against a national average of about 0.3 per 1,000 boys. These are per-capita rates, so they show where Lachlan is a genuine regional favorite rather than just where the most babies are born.
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
How old is the name Lachlan?
In official American birth records, the name Lachlan first appeared in 1952 (over 73 years ago), when 5 newborn boys received the name. It has been tracked in modern national records for 73 years.
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. On our rarity scale (rarity blended with momentum) we classify it as "distinctive".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.