John () was the archbishop of Cyprus in the late 7th century, during the temporary relocation of much of the Cypriot population, and the see of the Church of Cyprus, to Cyzicus in northwestern Asia Minor.
John was originally archbishop of Salamis on Cyprus, and hence head of the autocephalous Church of Cyprus. In 688, the Byzantine emperor Justinian II and the Umayyad caliph Abd al-Malik concluded a treaty that made the island a neutral condominium, not occupied by either of the two, and with revenue shared between them.
Sometime after that, but before 691, Emperor Justinian II decided to resettle the Cypriots in the Byzantine Empire: John with his flock were moved to Artake, near Cyzicus on the shores of the Sea of Marmara. The emperor's motive was probably to repopulate the area, which had suffered from the depredations of the Umayyads during the previous decade; Cyzicus had even been the base of the Umayyad fleet during the First Arab Siege of Constantinople in 674–678. The De administrando imperio of the 10th-century Byzantine emperor Constantine VII Porphyrogennetos, on the other hand, attributes this move to the initiative of John himself, whom he has travelling in person to Constantinople for this purpose in 691.