Hardap is one of the thirteen regions of Namibia. It is home to the Hardap Dam.
Hardap stretches the entire width of Namibia, from the Atlantic Ocean in the west to Namibia's eastern national border. In the northeast, it borders the Kgalagadi District of Botswana, and in the southeast, it borders the Northern Cape Province of South Africa. Domestically, it borders the following regions:
* Erongo - northwest
* Khomas - north central
* Omaheke - northeast
* Karas - south
The region comprises six constituencies: Gibeon, Rehoboth Rural, Rehoboth West Urban, Rehoboth East Urban, Mariental Urban, Mariental Rural