Lough Family History
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Lough Name Meaning
Irish: reduced Anglicized form of Gaelic Ó Lachtnáin ‘descendant of Lachtnán’, a personal name from lachtna ‘gray’. This is the name of several families in Ireland, and has more often been Anglicized as Loughlin or Loughran, and in County Cork as Lawton.
Source: Dictionary of American Family Names ©2013, Oxford University Press