Rossendale is a local government district with borough status in Lancashire, England. Its council is based in Bacup and its largest town is Rawtenstall. It also includes the towns of Haslingden and Whitworth. The borough is named after the Rossendale Valley, the upper part of the River Irwell.

Lancashire is a ceremonial county in North West England. It is bordered by Cumbria to the north, North Yorkshire and West Yorkshire to the east, Greater Manchester and Merseyside to the south, and the Irish Sea to the west. The largest settlement is Blackpool.