Prokoško Lake is a lake in Bosnia and Herzegovina, located in the municipality of Fojnica. It is settled 1,670 metres above sea level.
Around the lake, there are numerous shepherd's huts, made of wood, grouped into katuns (shepherd settlements). Many residents of the huts surrounding the lake come here in the spring and summer months to herd cattle, pick fruits such as blueberries or raspberries and make cheese. Some even rent out their cabins to tourists.