The historic county of Buckinghamshire, in the 21st century region of South East England, was represented in Parliament from the 13th century. This article provides a list of constituencies constituting the Parliamentary representation from Buckinghamshire.
In 1889 Buckinghamshire became an administrative county. In 1974 a new non-metropolitan county of Buckinghamshire lost the Eton and Slough areas to Berkshire, while the part of Colnbrook formerly included in the county also became part of Berkshire in 1995.
The first part of this article covers the constituencies wholly or predominantly within the area of the historic county of Buckinghamshire, both before and after the administrative changes of 1889, 1974 and 1995. The second part refers to constituencies mostly in another historic county, which included some territory from the historic county of Buckinghamshire. The summaries section only refers to the constituencies included in the first section of the constituency list.
Note: Dates of representation before 1510 are provisional.
List of constituencies
Article names are followed by (UK Parliament constituency). The constituencies which existed in 1707 were those previously represented in the Parliament of England.
Key to abbreviations: