The Red Monastery or The Monastery of Apa Psoi is a Coptic Orthodox monastery named after an Egyptian saint called Psoi or Pishoy. It is located near the Upper Egyptian city of Souhag, and about two and a half miles north-west of the White Monastery. The name of the monastery is derived from the colour of the construction material of its outside walls, consisting of red brick. These walls are considerably thicker at the base than at the top, and, just like the walls of Ancient Egyptian temples, they are surmounted by cavetto moldings. The Red Monastery is architecturally similar to the White Monastery.