| De Hoop Dam | |
| Name Official: | De Hoop Dam |
| Dam Crosses: | Kamdeboo River |
| Res Name: | De Hoop Dam Reservoir |
| Location: | Eastern Cape, South Africa |
| Operator: | Department of Water Affairs and Forestry |
| Dam Length: | 128 m |
| Dam Height: | 21 m |
| Opening: | 1938 |
| Res Capacity Total: | 16 500 000 m³ |
| Coordinates: | -32.4514°N 24.4232°W |
De Hoop Dam is a dam on the Kamdeboo River, near Graaff-Reinet, Eastern Cape, South Africa. It was established in 1938 and its primary purpose is for irrigation.