Hirvijarvi
| Dam Name | Hirvijarvi |
| River | Lapuanjoki |
| Near City | Seinajoki |
| Administration City | Western |
| Country | Finland |
| Year | 1974 |
| Dam Height | 12 |
| Dam Length | 9000 |
| Area(Sqkm) | 19.9 |
| Area(Polygonal) | 19.9 |
| Capital Expenditure | 40 |
| Depth(M) | 2 |
| Avg Displacement Of Water | 638 |
| Catchment Area In Sqkm | 108 |
| Main Usage | Hydroelectricity |
| Status | 3: Fair |
| Longitude | 23.054583 |
| Latitude | 62.80375 |
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