Giovanni Delfino may refer to: Giovanni Dolfin (died 1361), fifty-seventh Doge of Venice Giovanni Delfino (bishop of Brescia) (1529–1584), Italian Roman Catholic bishop Giovanni Delfino (camerlengo) (1545–1622), Camerlengo of the Sacred College of Cardinals Giovanni Delfino (cardinal) (1617-1699), Italian Roman Catholic cardinal Giovanni Delfino (bishop of Belluno) (died 1651), Italian Roman Catholic bishop