Bourn is a small village and civil parish in South Cambridgeshire, England. Surrounding villages include Caxton, Eltisley and Cambourne. It is 8 miles from the county town of Cambridge. The population of the parish was 1,015 at the time of the 2011 census. Bourn has a Church of England primary school, a doctors' surgery, the Church of St Mary& St Helena, a golf club, a former Royal Air Force bomber airfield, today used for light aircraft, and an old windmill.