| Leppävesi | |
| Pushpin Map: | Finland |
| Coords: | 62.25°N 82°W |
| Lake Type: | lake |
| Outflow: | Vaajavirta |
| Catchment: | Kymijoki |
| Basin Countries: | Finland |
| Length: | 30km (20miles) |
| Width: | 2km (01miles) |
| Area: | 63.59km2 |
| Depth: | 9.43m (30.94feet) |
| Max-Depth: | 45m (148feet) |
| Volume: | 0.6km3 |
| Shore: | 226.9km (141miles) |
| Elevation: | 80.8m (265.1feet) |
| Frozen: | December–April |
| Islands: | Kuusisaari, Pyhäsaari, Oravasaari |
| Cities: | Jyväskylä |
Leppävesi is the 65th (63.59 km2) largest lake of Finland in municipalities Jyväskylä, Laukaa and Toivakka.[1] It is quite narrow but long lake in direction south–north. It flows to Päijänne via Vaajavirta. It is part of Keitele Canal, waterway connecting Lake Keitele and Päijänne. National road 9 and Pieksämäki–Jyväskylä railway cross the lake.