List of highways numbered 20
Route 20, or Highway 20, may refer to:
International
Australia
Brazil
Canada
- Alberta Highway 20
- British Columbia Highway 20
- Manitoba Highway 20
- New Brunswick Route 20
- Newfoundland and Labrador Route 20
- Ontario Highway 20
- Prince Edward Island Route 20
- Quebec Autoroute 20
- Saskatchewan Highway 20
China
Cuba
Czech Republic
Ecuador
Greece
India
Israel
Italy
Ireland
Japan
Korea, South
New Zealand
Paraguay
- [Image:R20-PY.svg|20px|] National Route 20
Turkey
United Kingdom
United States
- Interstate 20
- U.S. Route 20
- * U.S. Route 20N
- * U.S. Route 20S
- New England Route 20
- Alabama State Route 20
- * County Route 20
- 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
- * Georgia State Route 20
- Illinois Route 20
- 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
- New Jersey Route 20
- * County Route 20 (Monmouth County, New Jersey)
- New Mexico State Road 20
- New York State Route 20 (1924–1927)
- * New York State Route 20N
- * New York State Route 20SY
- * 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)
- 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