The Cavendish River is a river of New Zealand. It is one of the southernmost rivers of the country's South Island, flowing south for 15 kilometres to reach Foveaux Strait on the southern coast of Fiordland. The river was named in 1882 by John Hay in commemoration of Lord Frederick Cavendish, who earlier that year was murdered in Dublin's Phoenix Park.
- ^ Reed, A. W. (2010). Peter Dowling, ed. Place Names of New Zealand. Rosedale, North Shore: Raupo. p. 74. ISBN 9780143204107.
Coordinates: 46°13′S 166°52′E / 46.217°S 166.867°E