State Route 124 (SR 124) is an east–west state highway in the southern portion of the U.S. state of Ohio. Its western terminus is at State Route 134 nearly 4 miles (6.4 km) southeast of Martinsville, and its eastern terminus is near the unincorporated village of Torch at the concurrency of U.S. Route 50, State Route 7, and State Route 32 in extreme southeastern Athens County. The road passes through numerous villages along its route, many of them economically depressed. State Route 124 has the longest concurrency of state routes in Ohio, running concurrent with State Route 32 for 35½ miles. The road was recently rerouted in 2003 following the extension of U.S. Route 33 to the Ravenswood Bridge.