| Jacaré River | |
| Other Name: | Jacarezinho River |
| Source1 Location: | Paraná state |
| Mouth: | Das Cinzas River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Jacaré River, or Jacarezinho River, is a river in the Paraná state in southern Brazil. It is a tributary of the Das Cinzas River and inspired the name of the town of Jacarezinho.