| Heyshope Dam | |
| Name Official: | Heyshope Dam |
| Dam Crosses: | Assegaai River |
| Res Name: | Heyshope Dam Reservoir |
| Location: | Mpumalanga, South Africa |
| Operator: | Department of Water Affairs and Forestry |
| Dam Length: | 1 030 m |
| Dam Height: | 28.5 m |
| Dam Type: | zoned earth-fill |
| Opening: | 1986 |
| Res Capacity Total: | 453 440 m³ |
| Res Catchment: | 1120 km2 |
| Res Surface: | 5 023.8 ha |
| Coordinates: | -27.0269°N 30.5°W |
Heyshope Dam is a zoned earth-fill type dam located on the Assegaai River, Mpumalanga, South Africa. It was established in 1986. The main purpose for the dam being built was to service communities around the Vaal triangle of the old Transvaal. The hazard potential of the dam construction has been ranked high (3).