Oribi Gorge is a canyon in southern KwaZulu-Natal, South Africa, 35 kilometres north-west of Port Shepstone, which itself is 120 km south of Durban. Oribi Gorge, cut by the Mzimkulwana River, is the eastern gorge of two gorges that cut through the Oribi Flats of KwaZulu-Natal. The western gorge was formed by the Mzimkulu River. The gorge is approximately 400 metres deep, and almost 5 kilometres wide at its widest.
Erosion by these rivers have carved out nearly 30 kilometres of spectacular kloofs and crags, covered with subtropical vegetation. In the gorge, the dense forest on the sandstone slopes is home to various small mammals, while the large leguaans excavate their burrows along the riverbanks.
At the base of the cliffs of both gorges the basement rocks are part of the Namaqua-Natal Metamorphic Province, which is over 1000 million years old. The cliffs themselves are formed by Msikaba formation sandstones deposited by fluvial environment about 365 million years ago. Downstream from the gorges, a large surface mine producing cement from a limestone deposit. The road through Oribi Gorge was built by Italian prisoners of war.