No. 20 Squadron was a squadron of the Royal New Zealand Air Force. Formed in January 1944 at RNZAF Station Ohakea, it was originally equipped with P-40 Kittyhawks. It later flew F4U-1 Corsair fighter bombers.
20 Squadron was deployed to Kukum Field on Guadalcanal from April-May 1944 and then to Piva Airfield on Bougainville from May-June 1944. The Squadron deployed to Palikulo Bay Airfield on Espiritu Santo from August-September 1944 and then returned to Guadalcanal from September-October 1944. 20 Squadron deployed to Green Island on 26 October 1944 assuming responsibility for local patrols and Dumbo escort from two USAAF F4U squadrons. The squadron returned to Santo in January 1945, then deployed to Bougainville until April 1945 and Jacquinot Bay from May–August 1945.
- Squadron Leader S. R. Duncan January–July 1944;
- Squadron Leader G. M. Robertson July–November 1944;
- Squadron Leader L. R. Reynolds December 1944–September 1945.
- ^ a b c Ross, 1955, p. 328
- ^ Ross, 1955, p. 269