| Nooitgedacht Dam | |
| Name Official: | Nooitgedacht Dam |
| Dam Crosses: | Komati River |
| Res Name: | Nooitgedacht Dam reservoir |
| Location: | Carolina, Mpumalanga |
| Country: | South Africa |
| Owner: | Department of Water Affairs |
| Dam Length: | 1053 m |
| Dam Height: | 41.8 m |
| Dam Type: | F |
| Opening: | 1962 |
| Res Capacity Total: | 78 477 000 m3 |
| Res Catchment: | 1 588 km2 |
| Res Surface: | 763 ha |
| Coordinates: | -25.9503°N 30.0836°W |
Nooitgedacht Dam is an earth-fill type dam located on the Komati River in South Africa. It was established in 1962 and serves mainly for irrigation purposes as well as municipal and industrial use. The hazard potential of the dam has been ranked high (3).