ChatGPT
Claude
Gemini
Perplexity
The short answer
Lachlan is a masculine name used in Scottish and English. Behind the Name describes it this way: "Anglicized form of Lachlann, the Scottish Gaelic form of Lochlainn. In the English-speaking world, this name was especially popular in Australia towards the end of the 20th century." It ranked #606 for boys in the United States in 2025.
Meaning and etymology
According to Behind the Name, anglicized form of Lachlann, the Scottish Gaelic form of Lochlainn. In the English-speaking world, this name was especially popular in Australia towards the end of the 20th century. The entry lists its usage as Scottish, English.
Editorial confidence: likely
Popularity
Lachlan ranked #606 for boys in the United States in 2025. The figure comes from the Social Security Administration's national file for that year.
| Region | Year | Rank | Source |
|---|---|---|---|
| United States | 2025 | #606 | ssa-2025 |
If you like this name
Names that Behind the Name files under the same origin (Scottish) and that sit near Lachlan in the 2025 American rankings.
Similar by origin
Frequently asked questions
What does the name Lachlan mean?
Behind the Name does not give Lachlan a one-word meaning. It describes the name as follows: anglicized form of Lachlann, the Scottish Gaelic form of Lochlainn.
Is Lachlan a popular name?
Lachlan ranked #606 for boys in the United States in 2025. (Social Security Administration data).
Is Lachlan a boy's or a girl's name?
In the 2025 SSA data Lachlan appears in the boys' list; Behind the Name labels it masculine.
Sources
- Behind the Name: Meaning, origin and history of the name Lachlan — supports meaning, usage, pronunciation, variants.
- U.S. Social Security Administration: Popular Baby Names — national data, year of birth 2025 — supports popularity.
