The Monastery of the Transfiguration of Christ the Saviour (Greek, Modern (1453-);: Μονή Μεταμορφόσεως Σωτήρος Χριστού), commonly known as the Soteros or Saviour Monastery (Μονή Σωτήρος, Turkish: Aya Sotiri manastırı) or as the Batheos Rhyakos Monastery (Μονή του Βαθέως Ρύακος), was a Byzantine-era monastery near modern Tirilye in Turkey (medieval Trigleia in Bithynia). The complex now lies ruined, although some buildings are used as animal shelters.