Ohio State Route 187

State Route 187
Route information
Maintained by ODOT
Length	8.22 mi[1] (13.23 km)
Existed	1931–present
Major junctions
South end	SR 56 near London
North end	SR 29 near Mechanicsburg
Location
Country	United States
State	Ohio
Counties	Madison, Champaign
Highway system
Ohio State Highway System Interstate US State Scenic
← SR 186 → SR 188

State Route 187 (SR 187) is a 8.22-mile (13.23 km) north–south state highway in the central portion of the U.S. state of Ohio. The southern terminus of SR 187 is at a T-intersection with SR 56 approximately 4.25 miles (6.84 km) northwest of London. Its northern terminus is at a T-intersection with SR 29 about one mile (1.6 km) to the southeast of Mechanicsburg.