| Grassridge Dam | |
| Name Official: | Grassridge Dam |
| Dam Crosses: | Great Brak River |
| Res Name: | Grassridge Dam Reservoir |
| Country: | South Africa |
| Location: | Hofmeyr, Eastern Cape |
| Owner: | Department of Water Affairs |
| Dam Length: | 594 m |
| Dam Height: | 30 m |
| Dam Type: | F |
| Purpose: | Irrigation |
| Construction Began: | 1923 |
| Opening: | 1924 (renovated 1948) |
| Res Capacity Total: | 46 200 000 m³ |
| Res Surface: | 1384 ha |
| Coordinates: | -31.7583°N 25.4669°W |
The Grassridge Dam is an earth-fill type dam located on a tributary of the Great Fish River called the Great Brak River, near Hofmeyr, Eastern Cape, South Africa. It is the starting point for the Fish River Canoe Marathon, which ends in Cradock. The Dam was constructed in 1923 (commissioned in 1924) and has been renovated in 1948. Its main purpose is for irrigation use and the hazard potential has been ranked high (3).