Langan Family History
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Langan Name Meaning
Irish: reduced Anglicized form of Gaelic Ó Longáin ‘descendant of Longán’, a personal name probably derived from long ‘tall’, or perhaps from the homonymous long ‘ship’ (and so originally a byname for a seafarer). Sometimes Leonard is used as an equivalent.
Source: Dictionary of American Family Names ©2013, Oxford University Press