Lieutenant General Noel Mackintosh Stuart Irwin CB, DSO & Two Bars, MC (24 December 1892 – 21 December 1972) was a senior British Army officer, who played a prominent role in the British Army after the Dunkirk evacuation, and in the Burma campaign during the Second World War. He was also instrumental in some reforms to the training and equipment of British soldiers after the defeat in France in 1940, intended to meet the demands of modern warfare.