South Carolina Highway 83 (SC 83) is a 4.820-mile (7.757 km) primary state highway in the U.S. state of South Carolina.

It connects the communities of eastern Marlboro County with Maxton, North Carolina.

SC 83 is a two-lane rural highway that traverses from a point northeast of Clio at SC 381 to the North Carolina state line where the road continues as North Carolina Highway 83 (NC 83).

[2][3] The highway was established in 1938 as a renumbering of SC 68 to match NC 83; no changes have been made since.

[4][unreliable source] The entire route is in Marlboro County.