Swanigan Family History
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Swanigan Name Meaning
Irish: of uncertain origin; perhaps an Anglicized form of a Gaelic Ó Suibhneacháin, which is not recorded in Ireland, but is possibly a pet form of Ó Suibhne (see Sweeney).
Source: Dictionary of American Family Names ©2013, Oxford University Press
Similar surnames: Lanigan, Hannigan, Mangan, Madigan, Flanagan, Gavigan, Swain