The historic county of Cornwall in south-west England was represented in Parliament from the 13th century.
This article provides a list of constituencies constituting the Parliamentary representation from Cornwall.
The first part of this article covers the constituencies wholly or predominantly within the area of the historic county.
The constituencies which existed in 1707 were those previously represented in the Parliament of England.
Key to abbreviations:- Note: Dates of representation prior to 1509 are provisional.