The Black Fork is a principal tributary of the Cheat River in the Allegheny Mountains of eastern West Virginia, USA.

[4] It was traditionally considered one of the five Forks of Cheat.

Via the Cheat, Monongahela and Ohio Rivers, it is part of the watershed of the Mississippi River, draining an area of 500 square miles (1,295 km²).

[3] The Black Fork flows for its entire length in Tucker County.

It is formed at the town of Hendricks by the confluence of the Dry Fork and the Blackwater River, and flows generally northwestwardly through Hambleton to Parsons, where it joins the Shavers Fork to form the Cheat River.