Sir Harold William Young KCMG (30 June 1923 – 21 November 2006) was an Australian Liberal Party politician who represented South Australia in the Senate from 1968 to 1983, acting as President of the Senate from 1981 to 1983. Harold Young was born in Port Broughton, South Australia on 30 June 1923 and educated at Prince Alfred College in Adelaide. Prior to entering Parliament, he was a wheat farmer and grazier and was involved with various industry bodies, including acting as vice-president of the South Australian division of the Farmers and Graziers Association. Young enlisted in the Royal Australian Navy during World War II and served from 1942 until 1946. Young was elected to represent South Australia in the 1967 Senate election, his term as Senator commencing on 1 July 1968, and re-elected in 1974, 1975 and 1977. From 18 August 1981 Young served as President of the Senate. He lost his own seat in the 1983 double dissolution election, the first sitting Australian Senate President to suffer this fate. He was appointed a Knight Commander of the Order of St Michael and St George (KCMG) in the New Year's Day Honours of 1983, "for services to the Parliament of Australia".