Black Lake (Serbian: Crno jezero, literally 'Black Lake') is a lake in Žabljak municipality, in northern Montenegro.
Black Lake's surface lies at the foot of "Međed" (English: Bear) peak, and has an area of 0,515 square km. The lake consists of two smaller lakes, "Veliko jezero" and "Malo jezero", literally Large lake and Small lake. The lakes are connected with a narrow strait, which dries up during the summer, thus creating two separate waterbodies.