The Errinundra River is a perennial river of the Bemm River catchment, located in the East Gippsland region of the Australian state of Victoria.

Errinundra River rises below Cobb Hill, part of the Errinundra Plateau, in remote country in the Errinundra National Park, and flows generally south by east, joined by the Ada River and five minor tributaries, before reaching its confluence with the Combienbar River to form the Bemm River, near Boulder Flat, northwest of the town of Cann River in the Shire of East Gippsland. The river descends 844 metres (2,769 ft) over its 28-kilometre (17 mi) course.

The Errinundra River sub-catchment area is managed by the East Gippsland Catchment Management Authority.

• List of rivers of Australia

• "Bemm River sub-catchment". East Gippsland Catchment Management Authority. Government of Victoria.
• "Bemm River - Catchment Map" (map). East Gippsland Catchment Management Authority. Government of Victoria.
• "Errinundra National Park: Park notes" (PDF). Parks Victoria. Government of Victoria. August 2012. Archived from the original (PDF) on 4 March 2016. Retrieved 11 January 2014.
• East Gippsland Catchment Management Authority (2013). East Gippsland regional catchment strategy 2013 -2019 (PDF). Bairnsdale: East Gippsland Catchment Management Authority. ISBN 978-0-9758164-6-2. Archived from the original (PDF) on 14 January 2014. Retrieved 13 January 2014.