Derbyshire County Council is the upper-tier local authority for the non-metropolitan county of Derbyshire in England. The council is based at County Hall in Matlock. Since 2017 the council has been under Conservative majority control.

The council was first set up in 1889 under the Local Government Act 1888,^[3] covering the administrative county. It was reconstituted in 1974 under the Local Government Act 1972 with some adjustments to its territory, most notably gaining Derby which had previously been a county borough independent from the county council. In 1997, the city of Derby left the area covered by the council becoming a unitary authority, but the city remains part of Derbyshire for ceremonial purposes.

There are eight lower tier district/borough councils within the Derbyshire Council area:^[4]

• Amber Valley Borough Council
• Erewash Borough Council
• Bolsover District Council
• Chesterfield Borough Council
• North East Derbyshire District Council
• High Peak Borough Council
• Derbyshire Dales District Council
• South Derbyshire District Council

The council has been under Conservative majority control since 2017.

Political control of the council since the 1974 reforms has been as follows:^[5][6]

From its creation in 1889 until 1955 the council met at County Hall, Derby, which had been built in 1660.^[15][16] In 1955 the council moved to the current county hall in Matlock. This newer county hall is in a former hydrotherapy complex called Smedley's Hydro which was built in 1867.^[17]

Since the last boundary changes in 2013 the council has comprised 64 councillors representing 61 electoral divisions. Most divisions elect one councillor, but three divisions (Alfreton and Somercotes, Eckington and Killamarsh, and Glossop and Charlesworth) elect two councillors. Elections are held every four years.^[18]

• Dennis Skinner (1964-1970), later member of parliament for Bolsover
• Andrew Lewer (2005-2014 Leader 2009-2013), later member of European Parliament for East Midlands