McLaughlin
An Irish surname meaning “son of Laughlin,” with Laughlin itself tied to an old Gaelic personal name sometimes glossed as “warrior” or “Viking.”
The #437 most common surname in the United States (2010 Census) — about 1 in every 4,127 Americans shares it.
Etymology
McLaughlin is an Anglicized Irish patronymic meaning “son of Laughlin” or “son of Lochlann.” The second element is the old Gaelic personal name Lochlann, a name often associated with Scandinavia and sometimes explained in older sources as referring to a Norseman or “Viking”; some 19th-century writers also gave looser glosses such as “expert sailor.” The surname is therefore best understood as a descendant-name built on an older Gaelic forename rather than from an English word.
History
The name is strongly associated with the Northern Irish branch of the Uí Néill, especially the O’Loughlins/MacLaughlins of northwestern Ireland, and older sources note the Gaelic form alongside variants such as MacLachlin and MacLoughlin. In later centuries the spelling with Mc- became common in English records, while other forms retained the fuller Mac- or the Irish O’-style forms in some contexts. It became established outside Ireland through migration, particularly to North America and Britain.
Origin
Regions
Variant spellings
Fun fact
Older genealogical writers sometimes linked the name to the Northern Hy Niall, making it one of the Irish surnames with a long-standing noble pedigree in traditional histories.
From the historical record
“small heap of stones. McLAUGHLIN. The son of Laughlin, or the expert sailor. See Laughlin. McLAURIN. The son of Ldbhruinn, or Lawrence. McLEAN. MacGillean. From a Highland chieftain of the name of Gillean, who was the progenitor of this family. This Gillean was a celebrated warrior, and was called Gillean-…”
— An Etymological Dictionary of Family and Christian Names