The following highways are numbered 788:
| Preceded by 787 | Lists of highways 788 | Succeeded by 789 |
State Route 788 (SR 788) is a north–south state highway in the southern portion of the U.S. state of Ohio. The western terminus is at State Route 93 in Jackson. Its eastern terminus is also at State Route 93, this time less than 2 miles (3.2 km) west of Wellston.
State Route 6 (SR 6) is a state highway that is unsigned. It travels through the central part of the U.S. state of Tennessee from Lawrence County to Sumner County. The highway is related to the following U.S. Highways:
