Robert Milton Cato (3 June 1915 – 10 February 1997) is the first Prime Minister of Saint Vincent and the Grenadines, and also held the offices Premier of Saint Vincent and Chief Minister of Saint Vincent before independence. Cato was the leader of the Saint Vincent and the Grenadines Labour Party, and led the country through independence in 1979.
Robert Milton Cato was born in Saint Vincent, British Windward Islands on June 3, 1915. He attended the St. Vincent Boys Grammar School from 1928 to 1933. On leaving school, the young Cato was articled to a Barrister-at-law in Kingstown, and began his career in law and was called to the Bar, Middle Temple in 1948. In 1945, he joined the First Canadian Army, attained the rank of Sergeant and gave active service in the Second World War in France, Belgium, Holland and Germany. Robert Milton Cato was married to Lucy Alexandra.
After returning to Saint Vincent, Cato became involved in politics. In 1955 he co-founded the Saint Vincent and the Grenadines Labour Party.
Elected to the office of Chief Minister on May 19, 1967, as head of the St. Vincent Labour Party, Mr. Cato did much to improve the economic standing of the island. He was St. Vincent’s first Premier on the island’s entry to Statehood on October 27, 1969. He was out of government during the period 1972 to 1974 following his party’s defeat. Cato's Labour Party lost elections in 1972 and the opposition leader, James Fitz-Allen Mitchell became Premier. Cato's party and its coalition partners won elections in 1974.