State Route 775 is a north–south state highway in the southern portion of the U.S. state of Ohio. Its southern terminus is on the East End Bridge with the unmarked West Virginia Route 106 south of Proctorville, and its northern terminus is at State Route 141 nearly 7 miles (11 km) west of Gallipolis. The route briefly overlaps State Route 217 in the village of Scottown, and passes through Wayne National Forest.