Reilly Family History
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Reilly Name Meaning
Irish: reduced form of O’Reilly, an Anglicized form of Gaelic Ó Raghailligh ‘descendant of Raghailleach’, Old Irish Roghallach, of unexplained origin.
Source: Dictionary of American Family Names ©2013, Oxford University Press
Similar surnames: O'reilly, Neill, Kelly, Crilly, Reidy, Rahilly, Rella, Neally, Reily