The following highways are numbered 128:

• New Brunswick Route 128
• Ontario Highway 128 (former)
• Prince Edward Island Route 128

• National Route 128

• National Highway 128 (India)

• Japan National Route 128

• A128 road

• 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

Territories

• Puerto Rico Highway 128