Durham is a provincial electoral district in Ontario, Canada, that has been represented in the Legislative Assembly of Ontario since 1999 and from 1926 to 1975. The Durham provincial riding was created in 1999 when Ontario adopted federal riding boundaries for provincial elections purposes. It was created from Durham East and Oshawa In 2007, the riding gained the Township of Uxbridge but lost all of its territory in Oshawa with the exception of the areas north of Taunton Road.