The Dry Fork is a 39.1-mile-long (62.9 km) tributary of the Black Fork of the Cheat River in the Allegheny Mountains of eastern West Virginia, USA. Via the Black Fork, the Cheat, and the Monongahela and Ohio rivers, it is part of the watershed of the Mississippi River. The Dry Fork flows for much of its length in the Monongahela National Forest and drains mostly rural and forested areas. It was traditionally considered one of the five Forks of Cheat.