Parent’s name
McLaughlin surname meaning
An Irish patronymic from Mac Lochlainn, “son of Lochlann,” a name associated with Scandinavia.
The short story
McLaughlin is an Irish patronymic from Mac Lochlainn, meaning “son of Lochlann.” Lochlann was a personal name associated with Scandinavia or the Norse world, reflecting historical contact rather than a claim that every bearer was Norse. MacLoughlin, McLoughlin, MacLaughlin, and related forms record different spelling traditions. McLachlan can look similar but has its own Scottish history in some families. The Mac “son of” construction and the Irish source are well documented, so this catalog classifies McLaughlin as a parent’s-name surname with high confidence.
Also seen as: MacLoughlin, McLoughlin, MacLaughlin, McLachlan
Sources used
- Ancestry/Dictionary of American Family Names entry 'McLaughlin' (Irish patronymic)
- Wikipedia 'McLaughlin (surname)' (Mac Lochlainn and variant forms)
- Names2020_LastNames_RaceHispanic_Top1000.xlsx (2020 Census)