Alan Glyndwr Cadman OAM (born 26 July 1937) is an Australian politician who served as a Liberal member of the Australian House of Representatives from 18 May 1974 to 17 October 2007, representing the Division of Mitchell, New South Wales.

Cadman was born in Sydney and studied agriculture at the University of New South Wales.

However, on 16 June 2007, Cadman withdrew from the preselection contest, and later announced his current term would be his last.

Specifically, he accused Hawke of engaging in massive branch-stacking to ensure he would win the preselection contest for this comfortably safe Liberal seat.

[4] Cadman formally retired on 17 October, when the House was dissolved ahead of the election.