Canadian Forces Base Greenwood, or CFB Greenwood, is a Canadian Forces Base located 1.5 nautical miles east of Greenwood, Nova Scotia. It is primarily operated as an air force base by the Royal Canadian Air Force and is one of two bases in the country using the CP-140 Aurora and CP-140A Arcturus anti-submarine/maritime patrol and surveillance aircraft. Its primary RCAF lodger unit is 14 Wing, commonly referred to as 14 Wing Greenwood.

A Canadian Forces base or CFB is a military installation of the Canadian Armed Forces. For a facility to qualify as a Canadian Forces base, it must station one or more major units.