Geoffrey Daniel Prosser (born 6 November 1948), Australian politician, was a Liberal member of the Australian House of Representatives from July 1987 until the 2007 election, representing the Division of Forrest, Western Australia. Prosser was born in Bunbury, Western Australia, and was a self-employed businessman and company director before entering politics. He was a member of the Bunbury City Council 1979–85. Prosser was a member of the Opposition Shadow Ministry from 1990 to 1996.