| Ostrowskie Lake | |
| Coords: | 52.5283°N 18.1236°W |
| Pushpin Map: | Kuyavian-Pomeranian Voivodeship |
| Basin Countries: | Poland |
| Length: | 6.6km (04.1miles) |
| Max-Depth: | 32.6m (107feet) |
Ostrowskie Lake is a lake in Kuyavian-Pomeranian Voivodeship, north-central Poland, in the Gmina Jeziora Wielkie. It's a Glacial lake more specifically, a Ribbon lake.