Susan Katriona MacGregor CBE (born 30 August 1941, Oxford) is a BBC Radio 4 broadcaster, perhaps best known as a former presenter of Woman's Hour and later the Today programme.
Her parents were Scottish and emigrated to South Africa where she was brought up. Her father was a doctor, a neurologist, who, during the Second World War was in the Royal Army Medical Corps with the British 14th Army in Burma. She attended the Herschel Girls School, an independent boarding school in Cape Town. She completed her education at the École de commerce in Neuchâtel, Switzerland, and at an English college called the House of Citizenship.
For a time in London, she worked as a typist at Australia House, then became a temporary junior secretary at the BBC. This entitled her to an induction course, where she was taught the BBC's method of working.
Returning to South Africa she began her broadcasting career there on the SABC's English-language radio service. Initially joining the BBC in 1967 as a reporter for The World At One, she went on to host Woman's Hour from 1972 until 1987. In 1984 she became one of the hosts of BBC Radio 4's Today programme, a position she held until 2002.