Lower Darwen is a village in the unitary borough of Blackburn with Darwen, contiguous with the town of Darwen, in the ceremonial county of Lancashire, England. It is located between the towns of Blackburn and Darwen. Nearby places include Ewood and Blackamoor. It is situated in the valley of the River Darwen.
The former township of Lower Darwen, abolished in the 1890s, extended south to Earnsdale Brook, and included areas now in the town of Darwen.