Sumela Monastery (Greek: Μονή Παναγίας Σουμελά, Moní Panagías Soumelá; Turkish: Sümela Manastırı) is a Greek Orthodox monastery dedicated to the Virgin Mary (Panagia, meaning "All Holy" in Greek) at Melá Mountain (Turkish: Karadağ, which is a direct translation of the Greek name Ssou Melá, "Black Mountain"[1]) within the Pontic Mountains (Turkish: Kuzey Anadolu Dağları) range, in the Maçka district of Trabzon Province in modern Turkey.

According to another version of decryption of the monastery complex name, it comes from Laz word sumela which means "Trinity" in English.[2]

Nestled in a steep cliff at an altitude of about 1,200 metres (3,900 ft) facing the Altındere valley, it is a site of great historical and cultural significance, as well as a major tourist attraction within Altındere National Park. Due to an increase in rock falls, on 22 September 2015 the monastery was closed to the public for safety reasons for the duration of one year to resolve the problem; this was later extended to three years. It is scheduled to reopen for visitors on Assumption day 2018.[3][4] The Monastery is one of the most important historic and touristic venues in Trabzon.[5]