Einavatnet is a lake which lies in Vestre Toten Municipality in Innlandet county, Norway.

The 13.82-square-kilometre (5.34 sq mi) lake lies at an elevation of 398 metres (1,306 ft) above sea level.

The Norwegian National Road 4 runs along the eastern shore of the lake.

This name is derived from einir which means "juniper" (referring to the vegetation around the lake).

The last element of the name is -vatnet which is the finite form of vatn which means "water" or "lake".