Hedley Grant Pearson Chapman (born 27 April 1949) is an Australian politician.

Born in Adelaide, South Australia, Chapman was educated at the University of Adelaide and worked as a marketing executive in the oil industry and a self-employed management consultant prior to gaining Liberal Party pre-selection for the federal Division of Kingston in the House of Representatives. Elected as part of Malcolm Fraser's landslide win, Chapman served in the House of Representatives until his defeat at the 1983 federal election. He returned to federal politics in 1987 as a member of the Australian Senate, representing South Australia.

1949 births | Living people | Liberal Party of Australia politicians | Members of the Australian House of Representatives | Members of the Australian Senate | Members of the Australian Senate for South Australia | Members of the Australian House of Representatives for Kingston