| Katrivier Dam | |
| Name Official: | Katrivier Dam |
| Dam Crosses: | Kat River |
| Res Name: | Katrivier Dam Reservoir |
| Country: | South Africa |
| Location: | Seymour, Eastern Cape |
| Owner: | Department of Water Affairs |
| Dam Length: | 460 m |
| Dam Height: | 52 m |
| Dam Type: | multi-arch |
| Purpose: | Irrigation and domestic use |
| Opening: | 1969 |
| Res Capacity Total: | 24 690 000 m³ |
| Res Catchment: | 260 km2 |
| Res Surface: | 212.9 ha |
| Coordinates: | -32.5689°N 26.7506°W |
Katrivier Dam is a multi-arch type dam located on the Kat River, near Seymour, Eastern Cape, South Africa. It was established in 1969. The primary purpose of the dam is to serve for irrigation and domestic use. The hazard potential of the dam has been ranked high (3).