The Betka River is a perennial river with no defined major catchment, located in the East Gippsland region of the Australian state of Victoria.
Course and features
The Betka River rises south of Genoa in the Croajingolong National Park, just east of the Princes Highway, and flows generally northeast, then southeast, then east by north, before reaching its mouth with Bass Strait north of the Mallacoota Aerodrome in the Shire of East Gippsland. The river descends 130 metres (430 ft) over its 32 kilometres (20 mi) course.
The scarce Callistemon kenmorrisonii or Betka Bottlebrush, which is found in one place along the river, draws its name from the river.