Old Irish origin
Source-reportedArgyll form of Lachlann, from Middle Irish Lochlann, a folk etymology (equivalent to loch (“loch”) + -lann (“place of”)) of Old Irish Lothlind, a name with disputed origins. Perhaps altered by analogy with Eachann.
Sources for this account (1)
- Wiktionary: LachannCC-BY-SA-4.0 · retrieved 2026-10-15

