Cheat Canyon — also called Cheat River Canyon or Cheat River Gorge — is a 10-mile (16 km) long, forested Canyon of the Cheat River at the western edge of the Allegheny Mountains in northeastern West Virginia, United States. A popular whitewater venue, for many years the Canyon has been the object of controversy as environmental activists have contended with timber and development interests over its preservation status.

The Cheat River is a 78.3-mile-long (126.0 km) tributary of the Monongahela River in eastern West Virginia and southwestern Pennsylvania in the United States. Via the Ohio River, the Cheat and Monongahela are part of the Mississippi River watershed. Owing to the ruggedness of the surrounding Allegheny Mountains, the Cheat remains largely remote with few settlements or developments along its banks. Its headwaters are in the Cheat-Potomac Ranger District of the Monongahela National Forest.