803 Naval Air Squadron (803 NAS) was a Fleet Air Arm (FAA) naval air squadron of the United Kingdom's Royal Navy (RN). The squadron was operational on four occasions from 1933 to 1946, subsequently transitioning to a Royal Canadian Navy squadron from 1946 to 1951.

A Skua of 803 Squadron force landed near Grondalen in Haugfjell. Midshipman C. Treen and Naval Airman A. E. T. Goble were later picked up by destroyer BEDOUIN. Type: Blackburn Skua

Fifteen Fleet Air Arm, Royal Navy Blackburn Skuas took off from the aircraft carrier HMS Ark Royal at 00:05 hrs. on 13th June 1940, (six, 800 Sqn. and nine, 803 Sqn.), to bomb the German Battleship Scharnhorst anchored in Trondheim Harbour.

He commanded 738 (Seahawks), 803 (Scimitars) 700 Z and 809 (Buccaneers) and has flown 35 different types of aircraft. In 1953 he was awarded the DSC for operations over Korea flying Sea Furies in 801 Squadron from HMS Glory. He was the leader of the all red Royal Navy Seahawk aerobatic team of five aircraft at the 1957 Farnborough Air Show.

The 803 Sqn. Royal Navy, FAA aircraft, from RNAS Hatston, Kirkwall, Orkney Islands, Scotland, was damaged by flak during a dive bombing attack on shipping in Bergen Harbour, Norway on the 12th April 1940.

In the van was 803 Sqn, led by Casson, in three Flights of three, followed by 800 Sqn in two flights of three. The two squadrons crossed the coast at 10,000ft, right over a lighthouse which the crews felt sure would betray their presence.

25 September 1939 - Ark Royal is escorting Nelson and Rodney in patrol of Heligoland, Lt B.S. McEwen and Petty Officer B. M. Seymour become first British aircraft in fighter squadron to shoot down German aircraft - Dornier Do.18

The Squadron stood down for the first time on 30. March 1954. VF-870 reformed on 1. November 1955, this time equipped with 10 McDonnell F2H-3 Banshees, becoming the first jet squadron in the Royal Canadian Navy.

803 Naval Air Squadron was a Royal Navy Fleet Air Arm squadron. 803 NAS was formed on 3 April 1933 by promoting No 409 (Fleet Fighter) Flight to the status of a squadron, with nine Ospreys. In the same month it embarked on HMS Eagle for the Far East, where it remained (transferring to HMS Hermes in January 1935) until disbandment on 1 October 1937.

803 Naval Air Squadron "Cave Punctum" .... History . 3. April 1933: 803 NAS formed from 409 Flt. at Netheravon: 1. April 1937: 803 NAS disbanded at RNAS Colombo: 21. November 1938: 803 NAS reformed at RNAS Worthy Down: 12. August 1943: 803 NAS disbanded at Tanga: 15. June 1945: 803 NAS reformed at RNAS Arbroath: 1. May 1951