Leppävesi is the 65th (63.59 km2) largest lake of Finland in municipalities Jyväskylä, Laukaa and Toivakka in Central Finland. It is quite a narrow but long lake in the south-north direction with a surface area of 63.59 km². It flows to Päijänne via Vaajavirta. It is part of Keitele Canal, a waterway connecting Lake Keitele and Päijänne. National road 9 and Pieksämäki–Jyväskylä railway cross the lake.