Mclachlan Family History
Mclachlan Surname Meaning
Scottish: Anglicized form of Gaelic Mac Lachlainn ‘son of Lachlann’ from the personal name Lachlann earlier Lochlann which means ‘stranger Norseman’.
This name is derived from a term denoting Scandinavia, possibly referring to the ‘land of lakes/fjords’.
See also Laughlin and compare Irish McLaughlin.
Source: Dictionary of American Family Names 2nd edition, 2022