| State: | OH |
| Type: | SR |
| Route: | 705 |
| Map: | OH 705 map.svg |
| Maint: | ODOT |
| Length Mi: | 28.85 |
| Length Round: | 2 |
| Length Ref: | [1] |
| Established: | 1937 |
| Direction A: | West |
| Terminus A: | near Fort Recovery |
| Direction B: | East |
| Terminus B: | near Sidney |
| Counties: | Darke, Shelby |
| Previous Type: | OH 1927 |
| Previous Route: | 704 |
| Next Type: | SR |
| Next Route: | 706 |
State Route 705 (SR 705) is a state highway in western Ohio, a U.S. state. The highway's western terminus is in rural northwestern Darke County at SR 49 approximately 5.25miles southeast of Fort Recovery, and just a mile south of the Darke-Mercer County Line. Its eastern terminus is at SR 29 nearly 2.75miles northwest of Sidney.
Established in the late 1930s, SR 705 connects the northern half of Darke County to the city of Sidney. The highway goes through rural areas in Darke County, passing through the villages of New Weston and Osgood heading east. The road follows very close to the Mercer County Line throughout Darke County. In Shelby County, Fort Loramie is the only village along the road.
Along its path, SR 705 travels through parts of the counties of Darke and Shelby. There are no stretches of this state route that are inclusive within the National Highway System.[2]
SR 705 was designated in 1937. The route has not experienced any major changes to its alignment since its inception.[3] [4]