Millom is a town and civil parish on the north shore of the estuary of the River Duddon around 7 miles north of Barrow-in-Furness in southwest Cumbria, England. Millom was constructed as a new town, beginning in 1866 and subsumed the village of Holborn Hill. Built around ironworks, the town grew to a size of over 10,000 people by the 1960s, but has struggled since the works were closed in 1968.