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Last name O'Connell (O'Connell
, О'Коннелл
, Ó Conaill
) , around the world, is a common surname. The cognomen O'Connell is characteristic of Ireland, where it is a common surname, Jersey, where it is quite a common surname, and Australia (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in the United States, Ireland, and Australia.