800 Naval Air Squadron (800 NAS) also referred to as 800 Squadron, is an inactive Fleet Air Arm (FAA) naval air squadron of the United Kingdom's Royal Navy (RN). It most recently operated the Harrier II GR.7/7A/9/9A V/STOL strike aircraft, as part of Joint Force Harrier (JFH), at RAF Cottesmore from March 2006 until January 2011.