Corby was a non-metropolitan district with borough status[1] in the county of Northamptonshire, England.

It bordered the East Northamptonshire district to the east, the Borough of Kettering to the south and west, the Harborough district of Leicestershire to the north-west, and the county of Rutland to the north-east.

[3] The area covered by the pre 1974 district was unparished,[4][5] the district also contained the civil parishes of Cottingham, East Carlton, Gretton, Middleton, Rockingham, Stanion and Weldon.

[7] Corby district contained the wards of Beanfield, Central, Danesholme, Kingswood & Hazel Leys, Lodge Park, Lloyds, Oakley North, Oakley South, Rowlett, Rural West, Stanion & Corby Village and Weldon & Gretton.

[10][11] The district was abolished on 1 April 2021 and merged with the East Northamptonshire district, the Borough of Kettering and the Borough of Wellingborough to form the North Northamptonshire unitary authority area.