Dubmill is a settlement in the civil parish of Holme St. Cuthbert in Cumbria, England. It is located approximately one mile south-west of the village of Mawbray, half-a-mile to the west of the hamlet of Salta, three-quarters of a mile south-west of the hamlet of Hailforth, and one-and-a-half miles north of the village of Allonby. Carlisle, Cumbria's county town, lies approximately twenty-eight miles to the north-east. The B5300, known locally as the coast road, runs through Dubmill.