South Carolina Highway 126 (SC 126) is a primary state highway in the U.S. state of South Carolina. It directly links Belvedere with Clearwater, with a small portion in North Augusta.
SC 126 is a suburban highway that travels from U.S. Route 25 (US 25)/SC 121 in Belvedere to SC 421 in Clearwater. In both Belvedere and North Augusta, SC 126 is a four-lane road with median; in Clearwater it only has two lanes. The entire highway has few commercial entities, mainly functioning to connect neighborhoods in the area. It also has intermediate junctions with Interstate 520 (I-520) and US 1/US 78.
SC 126 was established in 1939 as a new primary route and has remained unchanged since. The entire highway was paved by 1948 and widened in Belvedere and North Augusta by 2010.
The remaining two-lane section of SC 126 in Clearwater is planned to be widened to four lanes; however, no time-table has been set.