O'shaughnessy Family History
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O'shaughnessy Name Meaning
Irish (County Galway): Anglicized form of Gaelic Ó Seachnasaigh ‘descendant of Seachnasach’, a personal name of uncertain origin, perhaps derived from seachnach ‘elusive’.
Source: Dictionary of American Family Names ©2013, Oxford University Press
Similar surnames: Haughney, Shaughnessy, O'mahoney, Haughey, Haughn, O'flaherty