Ohio State Route 373

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State Route 373
Route information
Maintained by ODOT
Length	3.39 mi[1] (5.46 km)
Existed	1934–present
Major junctions
South end	SR 93 near Ironton
North end	SR 93 near Ironton
Location
Country	United States
State	Ohio
Counties	Lawrence
Highway system
Ohio State Highway System Interstate US State Scenic
← SR 372 → SR 374

State Route 373 (SR 373) is north–south state highway in the southern portion of Ohio. Its southern terminus is just over eleven miles (18 km) north of Ironton at SR 93 at the hamlet of Bartles, and its northern terminus is at about three miles (4.8 km) to the north of its southern terminus, also at SR 93.

The highway was designated in the mid-1930s at about the same time a number of similarly numbered highways, SR 370, SR 371 and SR 372, were created. All of these routes share a common bond in that they were established specifically to serve state parks and state forests. However, unlike the other three routes, which are all spurs, SR 373 is a loop route that intersects SR 93 at both endpoints, while providing access to Dean State Forest. Through the entirety of its route, SR 373 also passes through Wayne National Forest.