| Lake Drwęca | |
| Location: | Masurian Lake District |
| Pushpin Map: | Warmian-Masurian Voivodeship |
| Inflow: | Drwęca |
| Outflow: | Drwęca |
| Basin Countries: | Poland |
| Area: | 880.8ha |
Lake Drwęca (Polish: Jezioro Drwęckie, German: Drewenzer See,) is a lake in the Masurian Lake District of the Warmian-Masurian Voivodeship of Poland. The Drwęca river flows through it.