The Wolf River is a 40.3-mile-long (64.9 km)[2] river in the U.S. states of Tennessee and Kentucky[3] that rises at the base of the Cumberland Plateau in Fentress County, Tennessee and flows westward for several miles before becoming part of Dale Hollow Lake.

It is not to be confused with the Wolf River of West Tennessee which flows into the Mississippi at Memphis.

Below Pall Mall, the river continues westward across the northeastern Highland Rim into Pickett County, passing just east and north of Byrdstown as it flows through rolling farmland and forest.

About a mile downstream from the TN 111 bridge, its water becomes slack due to the impoundment of Dale Hollow Lake on the Obey River.

Before the lake was impounded by the U.S. Army Corps of Engineers in 1943, the confluence was the site of the community of Lillydale, formerly called Mouth of Wolf.