Template: Infobox River / BILD_fehlt
The Atnarko River is a river in the Canadian province of British Columbia.
The Atnarko River has its origin in the Charlotte Lake. It flows predominantly in a westerly direction for approximately 100 km until it meets the Telchako River and forms common to the Bella Coola River. Long stretches of its river course has the river in Tweedsmuir South Provincial Park. The Atnarko River has the status of a British Columbia Heritage River.