John Rolph (4 March 1793 – 19 October 1870) was a Canadian physician, lawyer, and political figure. He was elected to the Parliament of Upper Canada in 1824 to represent Middlesex County and was considered the leader of the Reform faction in the 1820s. In 1837 he helped plan the Upper Canada Rebellion, but acted as the government's emissary to negotiate a truce once the rebellion began. In the 1850s he was elected to the newly-formed Parliament of the Province of Canada, representing Norfolk County, and was appointed as Minister of Crown Lands and Minister of Agriculture. He founded several medical schools throughout his life, including the Rolph School, and incorporated new teaching techniques and medical practices into his lectures. His actions against rival medical schools decreased pub