American Meaning: The name Devyn is an American baby name. In American the meaning of the name Devyn is: Servant. Celtic Meaning: The name Devyn is a Celtic baby name. In Celtic the meaning of the name Devyn is: Poet.Irish Meaning: The name Devyn is an Irish baby name. In Irish the meaning of the name Devyn is: Poet.n English the meaning of the name Devyn is: English county name Devon. Anglo-Saxon Meaning: The name Devyn is an Anglo-Saxon baby name. In Anglo-Saxon the meaning of the name Devyn is: From Devon.