The historic county of Derbyshire, located in the 21st century region of East Midlands, was represented in Parliament from the 13th century. This article provides a list of constituencies constituting the Parliamentary representation from Derbyshire. In 1889 Derbyshire became an administrative county and in 1974 much the same area became a shire county. Derby became a unitary authority in 1997, but it remains part of the ceremonial county of Derbyshire.