An aircrew brevet is the badge worn on the left breast, above any medal ribbons, by qualified aircrew in the Royal Air Force, British Army, Indian Air Force, Canadian Forces, Australian Army, Royal Australian Air Force, Royal New Zealand Air Force, South African Air Force and Sri Lanka Air Force.

In the RAF, pilots wear the letters "RAF" in a wreath, surmounted by a crown, with a wing on each side (pilots' brevets are often referred to as "wings"). From April 2003, Weapons Systems Officers/Operators began to be awarded a similar brevet with a single wing. Other aircrew wear a letter or letters (denoting speciality) in a wreath, surmounted by a crown, with a single wing. The only other brevets currently worn are "E" (Air Engineer), "AT" (Airborne Technician), "IA" (Imagery Analyst) and "FC" (Fighter Controller). Parachute Jumping Instructors (PJIs) wear an open parachute instead of a letter. Obsolete brevets include "N" (Navigator), "LM" (Air Loadmaster), "AE" (Air Electronics Operator), "B" (Bomb Aimer), "AG" (Air Gunner), "AS" (Air Steward), "M" (Meteorological Observer), "QM" (Air Quartermaster), "S" (Air Signaller), and "RO" (Radio Observer). Observers wore a single wing attached directly to the letter "O".