The Drwęca (; ; ) is a river in northern Poland. It becomes a tributary of the Vistula river near the city of Toruń, forming a part of the city's administrative boundary. It has a length of 231 km and a basin area of 5,697 km<sup>2</sup>, all in Poland.
Towns:
- Ostróda
- Nowe Miasto Lubawskie
- Brodnica
- Golub-Dobrzyń
- Toruń