The following highways are numbered 156:
Brazil BR-156
Canada Prince Edward Island Route 156 (Palmer Road)
Costa Rica National Route 156
India National Highway 156 (India)
Japan Japan National Route 156
United Kingdom road B156 road
United States 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