David John Gatenby (born 12 February 1952 in Launceston, Tasmania) is an Australian cricketer, who played for Tasmania.
He was a right-handed batsman and leg-spin bowler who represented the team from 1972 until 1979.
Gatenby was the president of the Tasmanian Farmers and Graziers Association from 2008 - 2013.
He is currently a member of the Heritage Council of Tasmania, and the Tasmanian Forest Practices Board.