| Passo Fundo River | |
|---|---|
 | |
| Location | |
| Country | Brazil |
| Physical characteristics | |
| Source | |
| • location | Rio Grande do Sul state |
| Mouth | |
• location | Uruguay River |
The Passo Fundo River (Portuguese, Rio Passo Fundo[1]) is a river of Rio Grande do Sul state in southern Brazil. It is a tributary of the Uruguay River.