831 Naval Air Squadron (831 NAS) was a Naval Air Squadron of the Royal Navy's Fleet Air Arm.

[1] The squadron was reformed twice: firstly from 21 November 1955 - 10 December 1957 and then from 1 May 1958 - 26 August 1966.

[2] The cartoon character Flook was adopted as a squadron mascot in the era following World War 2 and painted as nose art on aircraft.

[3]