Rear-Admiral Sir Matthew Sausse Slattery, KBE, CB, FRAeS (12 May 1902 – 16 March 1990) was a British naval officer, military aviator and businessman. He was the managing director and chairman of Short Brothers and Harland, chairman of British Overseas Airways Corporation and latterly served as chairman of Hawthorn Leslie and Company. He was also a board member of Bristol Aeroplane Company and The National Bank.