The Labūnava Reservoir is an artificial lake in Kėdainiai District Municipality, in central Lithuania. It is located 11 kilometres (6.8 mi) south from Kėdainiai, next to Labūnava village. It was created in 1977, when a dam on the Barupė river was built next to Labūnava village. In 2003, the dam was reconstructed and a small hydroelectric plant (of 160 kW) built.

The banks of the reservoir are curvy, often overgrown by reed beds. The reservoir is mostly surrounded by agriculture lands, but a small section of the Labūnava Forest is located nearby. The reservoir water is used for irrigation.