Doohan Family History
Doohan Surname Meaning
Irish (Donegal): shortened Anglicized form of Gaelic Ó Duacháin ‘descendant of Duachán’ a diminutive of the early personal name Duí or Duach. This is a Donegal surname.
Alternatively the name may also be a shortened Anglicized form of Gaelic Ó Dubhchon ‘descendant of Dubhchú’ a personal name meaning ‘black hound’.
Forms of the two names are not now distinguishable.
Source: Dictionary of American Family Names 2nd edition, 2022
