County Hall is a high-rise tower block in Walton Street in Aylesbury, in the county of Buckinghamshire in England. It was built to house the former Buckinghamshire County Council. Following local government reorganisation in 2020 the building is now owned by Buckinghamshire Council. County Hall continues to be used as offices by the new council, but meetings of the council are held at The Gatehouse in Aylesbury, the former offices of Aylesbury Vale District Council.

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.