Giant's Castle is a mountain located within the Drakensberg range in KwaZulu-Natal, South Africa.

It includes a grassy plateau nestled among the deep valleys of the southern end of the central Drakensberg.

Together, the shape of the peaks and escarpment are thought to resemble a sleeping giant's profile; hence, its name.

Giant's Castle is best known for its nature reserve and the bushman rock art preserved at its main caves, and the game reserve is home of the eland as well as the bearded vulture and Cape vulture.

[citation needed] There are in excess of 25 walks in the Giant's Castle Game Reserve.