| Juodkiškiai Reservoir | |
| Location: | Kėdainiai District Municipality, Lithuania |
| Coordinates: | 55.2881°N 24.0411°W |
| Inflow: | Obelis, Malčius, Koliupė |
| Outflow: | Obelis |
| Length: | 3.85km (02.39miles) |
| Width: | 0.32km (00.2miles) |
| Area: | 0.834km2 |
| Depth: | 4.6m (15.1feet) |
| Max-Depth: | 12m (39feet) |
| Volume: | 0.004395km3 |
| Shore: | 15.2km (09.4miles) |
| Elevation: | 43m (141feet) |
| Cities: | Taučiūnai, Koliupė |
| Date-Flooded: | 1980 |
| Pushpin Map: | Lithuania#Kėdainiai District Municipality |
The Juodkiškiai Reservoir is an artificial lake in Kėdainiai District Municipality, central Lithuania. It is located east from Kėdainiai, next to Taučiūnai village. It was created in 1980, when a dam on the Obelis river was built next to Juodkiškiai hamlet. In 1995, the dam was reconstructed and a small hydroelectric plant (of 510 kW) built. Shores of the reservoir are low; agriculture lands stretch around the lake. The Bubliai Reservoir and some smaller reservoirs (the Koliupė Reservoir, the Malčius Reservoir) empty into the Juodkiškiai Reservoir. The A8 highway crosses the lake.