Gravesham (/ˈɡreɪvʃəm/ GRAYV-shəm) is a local government district with borough status in north-west Kent, England. The council is based in its largest town of Gravesend. The borough is indirectly named after Gravesend, using the form of the town's name as it appeared in the Domesday Book of 1086. The district also contains Northfleet and a number of villages and surrounding rural areas.

Parts of the borough lie within the Kent Downs, a designated Area of Outstanding Natural Beauty. The neighbouring districts are Dartford, Sevenoaks, Tonbridge and Malling, and Medway, plus Thurrock on the opposite side of the River Thames.

Gravesham is twinned with Cambrai in Hauts-de-France, France and Neumünster in Schleswig-Holstein, Germany. The Gravesham parliamentary constituency covers the same area as the borough.

The first borough in the area of modern Gravesham was "Gravesend and Milton", an ancient borough which had been incorporated in 1568 by Elizabeth I. The borough had been reformed in 1836 to become a municipal borough, at which point the name was changed to just "Gravesend".

The modern district was created on 1 April 1974 under the Local Government Act 1972, covering the whole area of two former districts and parts of a third, which were all abolished at the same time:

The new district was named Gravesham, using the form of Gravesend's name which had appeared in the Domesday Book. The choice of name was not without criticism; Robert Heath Hiscock, chairman of the Gravesend Historical Society, in the foreword to his book, 'A History of Gravesend' (Phillimore, 1976) wrote:

The district was granted borough status from its creation, allowing the chair of the council to take the title of mayor.

Gravesham Borough Council provides district-level services. County-level services are provided by Kent County Council. The more rural parts of the borough are also covered by civil parishes, which form a third tier of local government.