Kaj Birksted (2 March 1915 – 21 January 1996) was a Danish flying ace during World War II where he served in the RAF, with final rank of Wing Commander and Lieutenant Colonel in the Royal Norwegian Air Force. He then commanded No.331 Squadron from September 1942 to April 1943. On 14 October 1942, Birksted was decorated with the Distinguished Flying Cross. Birksted became tour-expired in March 1944,and was is attached to No. 11 Group Staff in Uxbridge and an Operational Planner. On 16 March 1945, he was appointed Wing Commader Flying at RAF Bentwaters, flying the P-51 Mustang.