Route 20, or Highway 20, may refer to:
International European route E20
Australia Sturt Highway (NSW/VIC/SA) Yarra Bank Highway
Brazil BR-020
Canada Alberta Highway 20 British Columbia Highway 20 Manitoba Highway 20 New Brunswick Route 20 (former) Newfoundland and Labrador Route 20 Ontario Highway 20 Prince Edward Island Route 20 Quebec Autoroute 20 Saskatchewan Highway 20
China G20 Expressway
Cuba Highway 6–20
Czech Republic I/20 Highway; Czech: Silnice I/20
Ecuador Ecuador Highway 20
Greece EO20 road
India National Highway 20 (India)
Israel Ayalon Highway
Italy Autostrada A20
Ireland M20 motorway (Ireland) N20 road (Ireland)
Japan Japan National Route 20 Chūō Expressway
Korea, South Iksan–Pohang Expressway National Route 20 Gukjido 20
Malaysia
North Klang Straits Bypass
New Zealand New Zealand State Highway 20 (Auckland Southwestern Motorway) New Zealand State Highway 20A New Zealand State Highway 20B
Paraguay National Route 20
Turkey , a motorway in Turkey as the ring road in Ankara.
State road D.020 (Turkey)
United Kingdom British A20 (London-Dover) British M20 (Swanley-Folkestone) A20 road (Northern Ireland)
United States Interstate 20 U.S. Route 20 U.S. Route 20N (former) U.S. Route 20S (former) New England Route 20 (former) Alabama State Route 20 County Route 20 (Lee County, Alabama) Arkansas Highway 20 California State Route 20 County Route A20 (California) County Route E20 (California) County Route G20 (California) County Route J20 (California) County Route S20 (California) Connecticut Route 20 Delaware Route 20 Florida State Road 20 Georgia State Route 20 Georgia State Route 20 (former) Georgia State Route 20 (former) Illinois Route 20 (former) K-20 (Kansas highway) Kentucky Route 20 Louisiana Highway 20 Louisiana State Route 20 Maryland Route 20 Massachusetts Route 20 M-20 (Michigan highway) Minnesota State Highway 20 County Road 20 (Goodhue County, Minnesota) Missouri Route 20 Nevada State Route 20 (former) New Jersey Route 20 County Route 20 (Monmouth County, New Jersey) New Mexico State Road 20 New York State Route 20 (1924–1927) (former) New York State Route 20N (former) New York State Route 20SY (former) County Route 20 (Allegany County, New York) County Route 20 (Clinton County, New York) County Route 20 (Columbia County, New York) County Route 20 (Delaware County, New York) County Route 20 (Dutchess County, New York) County Route 20 (Genesee County, New York) County Route 20 (Livingston County, New York) County Route 20 (Niagara County, New York) County Route 20 (Ontario County, New York) County Route 20 (Orange County, New York) County Route 20 (Oswego County, New York) County Route 20 (Otsego County, New York) County Route 20 (Putnam County, New York) County Route 20 (Rensselaer County, New York) County Route 20 (Rockland County, New York) County Route 20 (Suffolk County, New York) County Route 20 (Ulster County, New York) County Route 20 (Washington County, New York) County Route 20 (Yates County, New York) North Carolina Highway 20 North Dakota Highway 20 Ohio State Route 20 (1923-1927) (former) Oklahoma State Highway 20 South Carolina Highway 20 South Dakota Highway 20 Tennessee State Route 20 Texas State Highway 20 Texas State Highway Loop 20 Farm to Market Road 20 Texas Park Road 20 Utah State Route 20 Virginia State Route 20 Washington State Route 20 West Virginia Route 20 Wisconsin Highway 20
Territories Puerto Rico Highway 20 U.S. Virgin Islands Highway 20
Vietnam National Route 20 (Vietnam)
Zambia M20 road (Zambia)
See also List of A20 roads List of highways numbered 20A List of highways numbered 20B List of highways numbered 20C List of highways numbered 20D