Parliamentary representation from Cornwall

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.

In 1889 an administrative county of Cornwall was created. Unlike many other counties there has been no major change between the historic and administrative county boundaries. The first part of this article covers the constituencies wholly or predominantly within the area of the historic county. The second part refers to constituencies mostly in another historic county, which included some territory from the historic county of Cornwall (if any). The summaries section only refers to the constituencies included in the first section of the constituency list.

List of constituencies
The constituencies which existed in 1707 were those previously represented in the Parliament of England.

Key to abbreviations:-
 * (Type) BC Borough constituency, CC County constituency.

Summary of Constituencies by Type and Period
Note: Dates of representation prior to 1509 are provisional.