Lake Plav (Montenegrin: Plavsko jezero) is a lake in Plav municipality, in northeastern Montenegro.
It is a glacial lake located between the Prokletije and Visitor mountain ranges at an altitude of 906 m above sea level, and extends north-south for some 2,160 m. Its average width is 920 m, and its maximum depth is nine meters.
It is the biggest lake in Plav, and is also the best known tourist attraction in the area.
