| Hassan I Dam | |
| Name Official: | Barrage Hassan I |
| Location Map: | Morocco |
| Coordinates: | 31.8144°N -6.8228°W |
| Country: | Morocco |
| Location: | Demnate |
| Status: | O |
| Opening: | 1986 |
| Owner: | Office National de L'Electricite (ONE) |
| Dam Type: | Embankment |
| Dam Height: | 1450NaN0 |
| Dam Length: | 3800NaN0 |
| Dam Volume: | 90000000NaN0 |
| Dam Crosses: | Lakhdar River |
| Res Capacity Total: | 2730000000NaN0 |
| Res Catchment: | 16700NaN0 |
| Plant Commission: | 1991 |
| Plant Turbines: | 1 x 67.2MW Francis-type |
| Plant Capacity: | 67.2 MW[1] |
| Plant Annual Gen: | 132GWh |
The Hassan I Dam is an embankment dam located northeast of Demnate on the Lakhdar River in Azilal Province, Morocco. Completed in 1986, the dam provides water for the irrigation of over of farmland. The dam's hydroelectric power plant also generates on average annually. At in height, it is the tallest dam in Morocco and the tallest earth-fill dam in Africa. The dam is named after Hassan I of Morocco.[2]