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Cognomen Coyne (كوين
, Coyne
, コイン
, and others...) , all over the world, is a common surname. The family name Coyne is characteristic of Ireland, where it is quite a common surname, Libya, and Iraq, where it is quite a rare surname. Measured by absolute frequency, the name is most common in the United States, the United Kingdom, and Iraq. Very seldom, Coyne is the forename as well as the last name.