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Cognomen O'Dea (أودي
, O'Dea
) , across the world, is quite a rare last name. The family name O'Dea is characteristic of Ireland, where it is quite a common surname, Bermuda, and Australia, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in Australia, Ireland, and the United States. Very seldom, O'Dea is the forename as well as the last name.