South Carolina Highway 71 (SC 71) is a state highway in the northwestern part of the U.S. state of South Carolina. The highway runs 14.8 miles (23.8 km) in a west-east orientation from just east of Lowndesville east to Abbeville.

SC 71 begins at an intersection with SC 81 just east of Lowndesville. The route heads east, intersecting SC 284. The highway heads east, with a slight southeast jog, before entering Abbeville. It intersects SC 28 Bypass. Farther into the city is an intersection with SC 28, where the two routes form a concurrency until SC 71's eastern terminus, an intersection with SC 20/SC 28.

The entire route is in Abbeville County.