The archdiocese of Tarsus (Italian Tarso) is a Catholic titular see.
The first bishop, Helenus, dates from the third century; he went several times to Antioch in connexion with the dispute concerning Paul of Samosata. Le Quien mentions twenty-two of its bishops, of whom several are legendary. Among them are:
From the sixth century the metropolitan See of Tarsus had seven suffragan bishoprics (Echos d'Orient, X, 145); the Greek archdiocese is again mentioned in the tenth century (op. cit., X, 98), and has existed down to the present day, being comprised in the Patriarchate of Antioch. The Arabs took possession of Tarsus from the seventh century. .