Zygana once was a bishopric in Lazica, Georgia and remains a Latin Catholic titular see.
Its location was modern Cobuleti. It was presumably a suffragan of the Archdiocese of Phasis (Fasi, modern Poti). No residential incumbents available, nor a date of suppression.
In 1933 it was nominally restored as Latin Catholic Titular bishopric of Zygana (Latin) / Zigana (Curiate Italian) / Zyganen(sis) (Latin adjective). It is of the Episcopal (lowest) rank, but has had no incumbent yet.