State Route 136 (SR 136) is a 6.151-mile (9.899 km) state highway in Monroe County in the southwestern part of the U.S. state of Alabama. The western terminus of the highway is at an intersection with SR 21 south of Monroeville. The eastern terminus of the route is at an intersection with U.S. Route 84 and SR 41 near the Monroe–Conecuh county line, at a point east of Excel.