| Jari River Jary River | |
|---|---|
 Jari River near Monte Dourado | |
 Amazon Basin with Jari River in the northeast | |
| Native name | Rio Jari (Portuguese) |
| Location | |
| Country | Brazil |
| State | Amapá, Pará |
| Physical characteristics | |
| Mouth | Amazon River |
• location | Brazil |
• coordinates | 1°9′S 51°54′W / 1.150°S 51.900°W |
| Length | 790 km (490 mi)[1] |
| Basin size | 60,000 km2 (23,000 sq mi) |
| Discharge | |
| • average | 1,005–1,880 m3/s (35,500–66,400 cu ft/s) |
The Jari River, or Jary River (Portuguese: Rio Jari), is a northern tributary of the Amazon River on the border between the states of Pará and Amapá in northeastern Brazil. It is in the most downstream regions of the Amazon Basin and borders the Guiana Highlands and the Guianas to the northwest.