The Chetco River is a stream located in the southwestern portion of the U.S. state of Oregon. It drains approximately of Curry County. Flowing through a rugged and isolated coastal region, it descends rapidly from about to sea level at the Pacific Ocean. Except for the lowermost , the river is located entirely within the Rogue River – Siskiyou National Forest. The river rises in the Kalmiopsis Wilderness, northwest of Chetco Peak at the junction of the Oregon Coast Range and the Klamath Mountains. It flows generally north, west, and then southwest, before emptying into the ocean between Brookings and Harbor, approximately north of the California state line. The Chetco River's watershed remains largely undeveloped, protected by the Rogue River – Siskiyou National Forest and the Kalmiopsis Wilderness. The upper of the river have been designated Wild and Scenic since 1988.