Colonel Sir Robert Andrew St George Martin KCVO OBE (23 April 1914 – 13 December 1993) was a British Army officer who was Lord Lieutenant of Leicestershire from 1965 to 1989. Robert Andrew St George Martin was educated at Eton and at the Royal Military College, Sandhurst. He was commissioned into the Oxfordshire and Buckinghamshire Light Infantry in 1934. He was Aide-de-camp to the Governor General of South Africa from 1938 to 1940. He was appointed KCVO in 1988, OBE in 1959 and MBE in 1949.