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 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 Aerodrome in the Shire of East Gippsland. The river descends 130 m over its 32 km course. The scarce Callistemon kenmorrisonii or Betka Bottlebrush, which is found in one place along the river, draws its name from the river.