Air Commodore John Emilius Fauquier, DSO & Two Bars, DFC (19 March 1909 – 3 April 1981) was a Canadian aviator and Second World War Bomber Command leader. He commanded No. 405 Squadron RCAF and later No. 617 Squadron RAF (the Dambusters) over the course of the war. A bush pilot prior to the war, he joined the Royal Canadian Air Force as a flight instructor in 1939. He then joined 405 Squadron in 1941 and would fly operationally for the rest of the war, taking a drop in rank on one occasion to return to active command. During his three tours of operation he participated in Operation Hydra and dozens of other sorties over Europe.