Gradignan (; ) is a commune in the Gironde department in southwestern France.
It is a suburb of the city of Bordeaux and is located on its southwest side. Thus, it is a member of the Bordeaux Métropole.
The Château de Laurenzane, which currently serves as the town hall, dates back to 1752.
Gradignan is a part of the Bordeaux education zone ().
Gradignan prison is a high-security facility serving the Bordeaux area.
Gradignan has partnerships with: