RCAF Station Moose Jaw (IATA: YMJ, ICAO: CYMJ) is a Royal Canadian Air Force base located 4 nautical miles (7.41 kilometers) south of Moose Jaw, Saskatchewan. It is operated as an air force base by the Royal Canadian Air Force and is home to flight training conducted by the Canadian Forces. Its primary RCAF lodger unit is 15 Wing, commonly referred to as 15 Wing Moose Jaw.
The base's airfield is named after Air Vice-Marshal Clifford McEwen and is one of only three military aerodromes in Canada to be named after an individual, Valcartier (W/C J.H.L. (Joe) Lecomte) Heliport and Cold Lake/Group Captain R.W. McNair Airport being the others.
RCAF Station Moose Jaw's airfield is also used by civilian aircraft, with civilian operations at the base referring to the facility as Moose Jaw/Air Vice Marshal C.M. McEwen Airport.
The airport is classified as an airport of entry by NAV CANADA and is staffed by the Canada Border Services Agency. The customs service is currently restricted to 15 Wing - Moose Jaw aircraft only.