Mansfield District is a local government district in Nottinghamshire, England. It is named after the town of Mansfield, where the council is based. The district also contains Mansfield Woodhouse (which forms part of the Mansfield urban area) and Warsop.

The neighbouring districts are Bassetlaw, Newark and Sherwood, Ashfield and Bolsover.

The town of Mansfield had been governed by improvement commissioners from 1823. They were replaced in 1891 when it was incorporated as a municipal borough.

The modern district was formed on 1 April 1974 under the Local Government Act 1972. The new district covered the whole area of three former districts, which were all abolished at the same time:

The new district was named Mansfield after its main town. Unusually for a district taking the same name as a former borough, the new Mansfield district was not granted borough status. Instead charter trustees were established for the area of the former borough of Mansfield, with responsibility for looking after the civic regalia of the town.

Since 2002 the council has been led by a directly elected mayor.

Mansfield District Council provides district-level services. County-level services are provided by Nottinghamshire County Council. Warsop is also a civil parish, which is a third tier of local government for that part of the district.

The council has been under Labour majority control since the 2023 election.