| Hirvijärvi Reservoir (Finland) | |
| Pushpin Map: | Finland |
| Coords: | 62.8°N 29°W |
| Type: | Reservoir |
| Catchment: | Lapuanjoki |
| Basin Countries: | Finland |
| Area: | 15.272km2 |
| Shore: | 41.8km (26miles) |
| Elevation: | 88.6m (290.7feet) |
Hirvijärvi Reservoir (Finnish: Hirvijärven tekojärvi) is medium-sized lake in the Lapuanjoki main catchment area. It is located in the region Southern Ostrobothnia, in the municipality of Seinäjoki, Finland.[1]