Updated June 9, 2019

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Family name origins & meanings

  • Irish (Counties Fermanagh, Leitrim, and Roscommon) : reduced Anglicized form of Gaelic Ó Dúnáin ‘descendant of Dúnán’, which is a pet form of a longer name beginning with dun ‘fortress’.
  • Irish (Counties Fermanagh, Leitrim, and Roscommon) : reduced Anglicized form of Gaelic Ó Donnáin (see Donnan).