This article provides a list of constituencies constituting the Parliamentary representation from Berkshire.
In 1974 a new shire county of Berkshire lost the Abingdon area to Oxfordshire, while the Slough district was transferred from Buckinghamshire.
In 1997 the ceremonial county of Berkshire was divided between several unitary authorities.
The first part of this article covers the constituencies wholly or predominantly within the area of the historic county of Berkshire, both before and after the administrative changes of 1889, 1974 and 1997.
The constituencies which existed in 1707 were those previously represented in the Parliament of England.