Ohio State Route 705

State Route 705
Route information
Maintained by ODOT
Length	28.85 mi[1] (46.43 km)
Existed	1937–present
Major junctions
West end	SR 49 near Fort Recovery
Major intersections	US 127 near North Star
East end	SR 29 / CR 15 near Sidney
Location
Country	United States
State	Ohio
Counties	Darke, Shelby
Highway system
Ohio State Highway System Interstate US State Scenic
← SR 704 → SR 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 5.25 miles (8.45 km) southeast of Fort Recovery, and just a mile south of the Darke-Mercer County Line. Its eastern terminus is at SR 29 nearly 2.75 miles (4.43 km) 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.