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Surname Etymology and Meaning of DEEHAN

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Name meanings and etymologies are often disputed. The information here is compiled from freely available sources, and no claims whatsoever are made for accuracy, either historical or etymological.

Irish: Anglicized form of Gaelic Ó Díochon ‘descendant of Díochú’, a personal name formed with cú ‘hound’. This is a rare Ulster surname.

Source: Dictionary of American Family Names (2003)