The following highways are numbered 156:

• BR-156

• Prince Edward Island Route 156 (Palmer Road)

• National Route 156

• National Highway 156 (India)

• Japan National Route 156

• A156 road
• B156 road

• U.S. Route 156 (former)
• Alabama State Route 156
• Arkansas Highway 156
• California State Route 156
• Connecticut Route 156
• Georgia State Route 156
• Illinois Route 156
• Indiana State Road 156
• Iowa Highway 156 (former)
• K-156 (Kansas highway)
• Kentucky Route 156
• Louisiana Highway 156
• Maine State Route 156
• Maryland Route 156
• M-156 (Michigan highway)
• Minnesota State Highway 156
• Missouri Route 156
• Nevada State Route 156
• New Hampshire Route 156
• New Jersey Route 156
• New Mexico State Road 156
• New York State Route 156
• Ohio State Route 156 (former)
• Oklahoma State Highway 156
• Pennsylvania Route 156
• Tennessee State Route 156
• Texas State Highway 156
  • Texas State Highway Spur 156
• Utah State Route 156
• Virginia State Route 156
• Wisconsin Highway 156
• Wyoming Highway 156

Territories

• Puerto Rico Highway 156