| Una River | |
| Pushpin Map: | Brazil |
| Pushpin Map Caption: | Location of mouth |
| Mouth Coordinates: | -8.861°N -35.13°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
| Length: | 290km (180miles) |
| Basin Size: | 6740km2 |
The Una River is a river of Pernambuco state in northeastern Brazil. The Una originates on the Borborema Plateau, flows east, and empties into the Atlantic Ocean near Barreiros. Its length is 290 km, and its basin area is 6,740 km2, of which 6,263 km2 in Pernambuco.[1] It flows through the towns São Bento do Una, Altinho, Palmares and Agua Preta.[2]