Updated June 9, 2019

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Family name origins & meanings

  • Irish : (now mainly Counties Clare and Cork): reduced Anglicized form of Gaelic Ó Daghnáin ‘descendant of Daghnán’, possibly a diminutive of dagh ‘good’.
  • Irish : variant of Dineen.
  • English (of Norman origin) : habitational name from Dinan, in Côtes-du-Nord, Brittany.
  • In some cases, possibly an altered spelling of French Dinant, a habitational name from Dinant, a place in the Belgian province of Namur.