The following highways are numbered 191:
Canada New Brunswick Route 191 Quebec Route 191
Cuba
Road to Peñalver (2–191) Road of Turiguanó (5-191)
Japan Japan National Route 191
Philippines N191 highway (Philippines)
United Kingdom road B191 road
United States U.S. Route 191 Alabama State Route 191 Arkansas Highway 191 California State Route 191 Connecticut Route 191 Florida State Road 191 (former) Georgia State Route 191 Iowa Highway 191 K-191 (Kansas highway) Kentucky Route 191 Maine State Route 191 Maryland Route 191 M-191 (Michigan highway) (former) Montana Highway 191 (former) New York State Route 191 North Carolina Highway 191 Ohio State Route 191 Pennsylvania Route 191 South Carolina Highway 191 Tennessee State Route 191 Texas State Highway 191 Texas State Highway Spur 191 Farm to Market Road 191 (Texas) Utah State Route 191 Vermont Route 191 Virginia State Route 191 Wisconsin Highway 191 Wyoming Highway 191 Territories Forest Highway 191 (Puerto Rico)