Back Pepirí Guazú Breton Riu Pepiri-Guaçu Catalan Rio Peperi Guaçu CEB Rivero Pepirio Guazuo Esperanto Río Pepirí Guazú Spanish Rio Peperi-Guaçu French Rio Peperi-Guaçu Portuguese Pepiri-Guazu daryosi Uzbek
| Pepiri-Guazu River | |
|---|---|
 | |
 | |
| Location | |
| Countries | Argentina and Brazil |
| Physical characteristics | |
| Source | |
| • location | Dionísio Cerqueira |
| Mouth | |
• location | Uruguay River |
The Pepiri-Guazu River (Spanish Río Pepirí Guazú,[1] Portuguese Rio Peperi Guaçu[2]) is a river of Argentina and the Santa Catarina state in southeastern Brazil. Its course forms a short portion of the international border between Argentina and Brazil. It flows from north to south into the Uruguay River.