| State: | OH |
| Type: | SR |
| Route: | 256 |
| Map: | OH 256 map.svg |
| Maint: | ODOT |
| Length Mi: | 25.99 |
| Length Round: | 2 |
| Length Ref: | [1] |
| Direction A: | West |
| Terminus A: | in Reynoldsburg |
| Junction: | in Pickerington |
| Direction B: | East |
| Terminus B: | west of Somerset |
| Counties: | Franklin, Fairfield, Perry |
| Previous Type: | SR |
| Previous Route: | 255 |
| Next Type: | SR |
| Next Route: | 257 |
State Route 256 (SR 256) is a 25.99miles east - west state highway in the central portion of the U.S. state of Ohio. The western terminus of SR 256 is at a T-intersection with U.S. Route 40 (US 40) in Reynoldsburg. Its eastern terminus is at a T-intersection with SR 13 approximately 5.5miles west-northwest of Somerset.
SR 256 runs through parts of Franklin, Fairfield and Perry Counties. No portion of SR 256 is included within the National Highway System (NHS). The NHS is a system of highways deemed most important for the nation's economy, mobility and defense.[2]
The current route of SR 256 between Reynoldsburg and Baltimore was commissioned as SR 204, in 1923. In 1927, SR 256 was commissioned on that section of SR 204. SR 256 was extended east to an intersection with SR 13, in 1937.