The Coosa River is a tributary of the Alabama River in the U.S. states of Alabama and Georgia.
The river is about 280 miles (450 km) long.
The Coosa River begins at the confluence of the Oostanaula and Etowah rivers in Rome, Georgia, and ends just northeast of the Alabama state capital, Montgomery, where it joins the Tallapoosa River to form the Alabama River just south of Wetumpka.
