Bassetlaw is a local government district in north Nottinghamshire, England. Its council is based in the town of Worksop; the other towns in the district are Retford, Tuxford and Harworth Bircotes. The district also contains numerous villages and surrounding rural areas.
Bassetlaw is bounded to the south by the Newark and Sherwood and Mansfield districts, to the south-west by the Bolsover district of Derbyshire, to the north-west by the Metropolitan Borough of Rotherham and the City of Doncaster in South Yorkshire, to the north by North Lincolnshire, and to the east by West Lindsey.