| Mthatha Dam | |
| Name Official: | Mthatha Dam |
| Dam Crosses: | Mthatha River |
| Res Name: | Mthatha Dam Reservoir |
| Country: | South Africa |
| Owner: | Department of Water Affairs |
| Dam Type: | F |
| Purpose: | Industrial and domestic |
| Opening: | 1977 |
| Res Catchment: | 886 km2 |
| Coordinates: | -31.5506°N 28.74°W |
Mthatha Dam is an earth-fill type dam located on the Mthatha River, near Mthatha, Eastern Cape, South Africa. It was established in 1977 and serves mainly for municipal and industrial purposes. Its hazard potential has been ranked high (3).