Douglas Martin Smale (27 March 1916 – 2006) was an English professional footballer who played as a winger in the Football League for Chelsea. Having started out in non-League football with Kingstonian, Smale signed for Chelsea in 1936, where he made nine Football League appearances before the outbreak of World War II. During the war years, Smale made guest appearances for Queens Park Rangers, Norwich City, Plymouth Argyle, Torquay United, and Colchester United. He later played for Merthyr Tydfil.