John Kenneth Johnston (June 28, 1865[1] – May 1945[2]) was a lawyer, farmer and political figure in Saskatchewan.
He represented Pelly in the Legislative Assembly of Saskatchewan from 1908 to 1917 as a Liberal.
He was born in Crinan, Aldborough Township, Elgin County, Canada West, the son of Duncan M. Johnston and Harriet Urquart, and was educated at Queen's University.
[1] Johnston established law offices in Kamsack and Canora.
He ran unsuccessfully for election to the provincial assembly as an independent in 1929.