861 Naval Air Squadron (861 NAS) was a Naval Air Squadron of the Royal Navy's Fleet Air Arm.
861 Squadron was formed in September 1946 at RNAS Dale, Wales, from personnel of the Royal Netherlands Navy, under the command of Luitenant G.H. Greve.[1] Flying the Fairey Firefly, the squadron was assigned to the escort carrier HNLMS Karel Doorman (QH1) in February 1947, but was disbanded soon afterwards.[2]