The Tar River is a river that is approximately 346 kilometers (215 miles) long, of northeast North Carolina flowing generally southeast to an estuary of Pamlico Sound. The Tar River becomes the Pamlico River once is underpasses the U.S. Highway 17 bridge at Washington, North Carolina.

North Carolina was originally a naval stores colony--that is, the blanket of long leaf pines that covered the coastal plane was used by the British Navy for ship's masts and the pine pitch was used to manufacture tar caulking for vessels. The river derives its name from its historic use as a major route for tar-laden barges as they headed to the sea. The city of Tarboro on the banks of the river, as well as the state's official nick name "Tar Heel State" also derive from this history.

Among the towns and cities along its course are Greenville, Louisburg, Rocky Mount, and Tarboro. The village of Old Sparta was formerly an important riverport on the Tar, but has declined in the 20th century.

There is also a Tar River in Montserrat, West Indies. Vorlage:NorthCarolina-geo-stub