The Lowca Light Railway (LLR) was a small railway on the coast of Cumberland, which is now part of Cumbria, England. The line had industrial origins, but in the early twentieth century it expanded into carrying passengers in association with the Cleator and Workington Junction Railway (CWJR). This venture petered out in 1929, whereafter the line reverted to industrial use. It ended its days in 1973, having outlived almost all its larger neighbours. The line's legal title was "The Harrington and Lowca Light Railway", but it was widely referred to by the shorter form.