Rossendale (UK Parliament constituency)

Rossendale was a parliamentary constituency in the Lancashire, England. Created in 1885, it elected one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom, elected by the first-past-the-post voting system. When created it comprised the districts of Rawtenstall, Bacup, and Haslingden; Ramsbottom district was added to the constituency in 1950. The constituency ceased to exist with the implementation of the 1983 boundary changes and was replaced by the Rossendale and Darwen constituency. The exact nature of the changes were as follows: 9,882 electors of the Rossendale seat were transferred to Bury North. 25,918 electors were added from the abolished Darwen constituency and 5,267 from Heywood and Royton.