Buckinghamshire Council is the local authority for the non-metropolitan county of Buckinghamshire in England. It is a unitary authority, performing both county and district-level functions. It was created on 1 April 2020, replacing the previous Buckinghamshire County Council and the councils of the four abolished districts of Aylesbury Vale, Chiltern, South Bucks, and Wycombe. The non-metropolitan county is smaller than the ceremonial county, which additionally includes Milton Keynes.

Buckinghamshire is a ceremonial county in South East England and one of the home counties. It is bordered by Northamptonshire to the north, Bedfordshire to the north-east, Hertfordshire to the east, Greater London to the south-east, Berkshire to the south, and Oxfordshire to the west. The largest settlement is the city of Milton Keynes, and the county town is Aylesbury.