Buckinghamshire is a ceremonial county in southeast England. Buckinghamshire may also refer to: Buckinghamshire, a former County of Lower Canada divided in 93 townships in 1792 Buckinghamshire (UK Parliament constituency), a former United Kingdom Parliamentary constituency, 1707–1885 South Buckinghamshire (UK Parliament constituency), a former County constituency and a division of the Administrative County of Buckinghamshire, 1950–1974