Freshwater sharks are sharks able to live in freshwater lakes and rivers, including:
the river sharks, Glyphis, true freshwater sharks found in fresh and brackish water in Asia and Australia
the bull shark, Carcharhinus leucas, which can swim between salt and fresh water, and are found in tropical rivers around the world.
A number of freshwater cyprinids (which are bony fish and thus quite unrelated to sharks) are also commonly called "freshwater sharks", "sharkminnows" or simply "sharks", particularly in the aquarium fish trade:
Balantiocheilos melanopterus – Bala Shark, Tricolor Shark, Silver Shark
Epalzeorhynchos – typical freshwater "sharks"
Labeo – labeos
Puntius denisonii – Roseline Shark
the Mully Catfish
