State Route 8 is a primary state highway in the U.S. state of Virginia. The state highway runs 55.88 miles (89.93 km) from the North Carolina state line near Palmetto, where the highway continues south as North Carolina Highway 8, north to U.S. Route 11 in Christiansburg. SR 8 is part of a 151-mile (243 km) two-state highway 8 system and is the main north–south highway of Patrick County, Floyd County, and southern Montgomery County, connecting their respective county seats of Stuart, Floyd, and Christiansburg with each other and with the Blue Ridge Parkway. The state highway also links the New River Valley region of Virginia with Southside Virginia via US 58 and the Piedmont Triad of North Carolina via NC 8.

North Carolina Highway 8 (NC 8) is a primary state highway in the U.S. state of North Carolina. The route connects the cities of Lexington and Winston-Salem to various recreational and natural sites including Uwharrie National Forest, High Rock Lake and Hanging Rock State Park.