Air Marshal Sir Colin Thomas Hannah, KCMG, KCVO, KBE, CB (22 December 1914 – 22 May 1978) was a senior commander in the Royal Australian Air Force (RAAF) and a Governor of Queensland. Born in Western Australia, he was a member of the Militia before joining the RAAF in 1935. After graduating as a pilot, Hannah served in Nos. 22 and 23 Squadrons from 1936 to 1939. During the early years of World War II, he was the RAAF's Deputy Director of Armament. He then saw action in the South West Pacific as commander of No. 6 Squadron and, later, No. 71 Wing, operating Bristol Beaufort bombers. By 1944, he had risen to the rank of group captain, and at the end of the war was in charge of Western Area Command in Perth.