The 3rd Carrier Air Group of the Fleet Air Arm was formed on 2 August 1945. It was a spare air group for the British Pacific Fleet based at Nowra. It was formed too late for service in the war, and it contained No. 854 NAS flying the TBF Avenger, No. 1843 NAS and No. 1845 NAS flying the F4U Corsair. It was disbanded on 20 October 1945, and its personnel returned to the United Kingdom on board a merchant ship.