Ohio State Route 177

State Route 177
Route information
Maintained by ODOT
Length	25.17 mi[1] (40.51 km)
Existed	1938–present
Major junctions
South end	SR 4 / SR 129 in Hamilton
Major intersections	US 127 in Hamilton
North end	SR 227 near Fairhaven
Location
Country	United States
State	Ohio
Counties	Butler, Preble
Highway system
Ohio State Highway System Interstate US State Scenic
← SR 176 → SR 178
← US 224 → SR 225

State Route 177 (SR 177) is a north–south state highway located in the southwest corner of the U.S. state of Ohio. The southern terminus of State Route 177 is at the signalized junction of State Route 4 and State Route 129 in Hamilton, after State Route 177 runs concurrently with State Route 129 for its southernmost 1.59 miles (2.56 km). The northern terminus of State Route 177 is at the Indiana State Line approximately 3.75 miles (6.04 km) northwest of the unincorporated community of Fairhaven. From this point, State Route 177 continues into Indiana as Indiana State Road 227.