Edgar Wylie Prowse (22 March 1905 – 2 June 1977) was an Australian politician who served as a Senator for Western Australia from 1962 to 1973, representing the Country Party.

He returned to the family property at Doodlakine after graduating, and wrote on agricultural topics for the Daily News.

Prowse was prominent in the Wheat Growers' Union, serving on the state executive, and was on the Kellerberrin Road Board from 1945 to 1949.

He was a leading campaigner for the "no" vote on the 1967 referendum, which sought to amend the constitution to increase the power of the House of Representatives in joint sittings.

Prowse was elected chairman of committees in 1971, but resigned from parliament in 1973 due to ill health.