The following highways are numbered 128:
Canada
New Brunswick Route 128
Ontario Highway 128 (former) Prince Edward Island Route 128
Costa Rica
National Route 128
India
National Highway 128 (India)
Japan
Japan National Route 128
United States
Alabama State Route 128
Arkansas Highway 128
California State Route 128
Colorado State Highway 128
Connecticut Route 128
Florida State Road 128
Georgia State Route 128
Illinois Route 128
Indiana State Road 128
Iowa Highway 128
K-128 (Kansas highway) Kentucky Route 128 Louisiana Highway 128 Maine State Route 128 Maryland Route 128 Massachusetts Route 128 Massachusetts Route 128A (former) Missouri Route 128 Nebraska Highway 128 New Hampshire Route 128 New Mexico State Road 128 New York State Route 128 County Route 128 (Cortland County, New York) County Route 128 (Jefferson County, New York) County Route 128 (Rensselaer County, New York) County Route 128 (Sullivan County, New York) County Route 128 (Tompkins County, New York) County Route 128 (Ulster County, New York) North Carolina Highway 128 Ohio State Route 128 Oklahoma State Highway 128 Pennsylvania Route 128 Rhode Island Route 128 South Carolina Highway 128 Tennessee State Route 128 Texas State Highway 128 Texas State Highway Loop 128 Texas State Highway Spur 128 (former) Farm to Market Road 128 Utah State Route 128 Vermont Route 128 Virginia State Route 128 Virginia State Route 128 (1928-1933) (former) Washington State Route 128 Wisconsin Highway 128