Jack Preger (born 25 July 1930, in Manchester, England) is a British doctor who has been offering medical treatment as well as vocational training to the poor in the Indian city of Kolkata and in other parts of West Bengal since 1972. He established the relief agency Calcutta Rescue. Preger graduated from St Edmund Hall, Oxford with a post-graduate degree in economics and political science. He worked for a few years as a farmer in Wales before selling his farm and deciding to become a doctor instead. In 1965, he was admitted into the Royal College of Surgeons in Dublin at the age of 35.