Lac Sian
| Dam Name | Lac Sian |
| Main Basin | Volta |
| Sub Basin | Nakambe |
| Near City | Lac Sian |
| Administration City | Sanmantenga |
| Country | Burkina Faso |
| Year | 1950 |
| Dam Height | -99 |
| Dam Length | -99 |
| Area(Sqkm) | 1.6 |
| Area(Polygonal) | 1.6 |
| Capital Expenditure | 1.5 |
| Depth(M) | 0.9 |
| Avg Displacement Of Water | 821 |
| Catchment Area In Sqkm | 764 |
| Main Usage | Irrigation |
| Status | 4: Poor |
| Longitude | -1.21875 |
| Latitude | 13.097917 |
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