The East of Scotland Universities Air Squadron (), commonly known as ESUAS, is a squadron within the Royal Air Force established in 2003 as an amalgamation of "East Lowlands Universities Air Squadron" and "Aberdeen, Dundee and St Andrews Universities Air Squadron". It is based at Royal Air Force Leuchars, in Fife and flies a fleet of 5 Grob Tutor aircraft. ESUAS is the parent Squadron of 12 Air Experience Flight, who share the aircraft.