Marquess of Ailesbury, in the County of Buckingham, is a title in the Peerage of the United Kingdom. It was created on 17 July 1821 for Charles Brudenell-Bruce, 2nd Earl of Ailesbury.

Aylesbury is the county town of Buckinghamshire, South East England. It is home to the Roald Dahl Children's Gallery and the Waterside Theatre. It is located in central Buckinghamshire, midway between High Wycombe and Milton Keynes.