Sir Walter Kingsmill (10 April 1864 – 15 January 1935) was an Australian politician and footballer.Born in Glenelg, South Australia, he was educated at St Peter's College in Adelaide and at the University of Adelaide before becoming a geologist. Moving to Western Australia in 1888, he became a mine manager. While in Perth, he represented the Victorians Football Club (later West Perth) in two matches in the West Australian Football League during the 1888 season.