| Canoas River | |
| Source1 Location: | Santa Catarina state |
| Mouth Location: | Uruguay River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Canoas River (Portuguese, Rio Canoas) is a river of Santa Catarina state in southeastern Brazil. With a length of 570 kilometres, the river joins the Pelotas River to form the Uruguay River.