Meaning and Origin of: Dugan

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First name origins & meanings:

  • Old English : Dark water
  • English : Worthy

Last name origin & meaning:

  • Irish : reduced Anglicized form of Gaelic Ó Dubhagáin ‘descendant of Dubhagán’, a byname representing a double diminutive of dubh ‘black’, ‘dark’ (see Duff).
  • Irish : reduced Anglicized form of Ó Duibhginn (see Deegan).