Metropolis of Pergamon

The Metropolis of Pergamon (Greek: Μητρόπολις Περγάμου) was an ecclesiastical territory (diocese) of the Ecumenical Patriarchate of Constantinople in western Asia Minor, modern Turkey.

However, it soon ceased to exist as a result of the Turkish conquest of the area in the 1310s, the subsequent decline of the local Christian population and the later destruction of Pergamon by the hordes of Timur.

[1] At the beginning of the 19th century, due to the increase of the local Christian population, a number of reforms in religious administration occurred in the region and Pergamon became part of the newly established metropolitan district of Kydonies, based in Ayvalık, but still part of the Metropolis of Ephesus.

[2] During the years 1986–2023, the titular metropolitan of Pergamon and Adramyttium appointed by the Ecumenical Patriarchate of Constantinople was the famous theologian John Zizioulas.

At that period, 33 Greek Orthodox communities were recorded, while the local Greek-Orthodox population at the early 20th century was estimated to 32,930 people and 31 priests.