Diocese of Hierapolis

The Diocese of Hierapolis in Phrygia, was a Christian bishopric in Phrygia (modern central Turkey).

Through the influence of the Christian apostle Paul, a church was founded at Hierapolis while he was at Ephesus. The Christian apostle Philip spent the last years of his life here. The town's martyrium was alleged to have been built upon the spot where Philip was crucified in AD 80. His daughters were also said to have acted as prophetesses in the region.

During the 4th century, Christianity had become the dominant religion and begun suppressing other faiths in the area. A see of the province of Phrygia Pacatiana, the Byzantine emperor Justinian I raised the bishop of Hierapolis to the rank of metropolitan bishop in 531. The city's Roman baths were transformed into a Christian basilica. During the Byzantine period, the city continued to flourish and also remained an important centre for Christianity. Tiberiopolis was a suffragan see.

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