List of highways numbered 15
Route 15, or Highway 15, can refer to:
For roads named A15, see A15 roads.
International
Australia
New South Wales
- Hunter Expressway
- New England Highway and other local Newcastle routes
Northern Territory
Queensland
South Australia
- – South Australia
Tasmania
Canada
- Alberta Highway 15
- British Columbia Highway 15
- Manitoba Highway 15
- New Brunswick [Route 15]
- Ontario Highway 15
- Prince Edward Island Route 15
- Quebec Autoroute 15
- Saskatchewan Highway 15
China
Cuba
Czech Republic
Djibouti
Greece
India
Iran
Ireland
Italy
Japan
Jordan
*Korea, South
Mexico
New Zealand
Paraguay
- [Image:R15-PY.svg|20px|] National Route 15
Poland
Ukraine
United Kingdom
United States
- Interstate 15
- U.S. Route 15
- New England Route 15
- Alabama State Route 15
- * County Route 15
- Arkansas Highway 15
- California State Route 15
- * County Route A15 (California)
- * County Route E15 (California)
- * County Route G15 (California)
- * County Route J15 (California)
- * County Route S15 (California)
- Colorado State Highway 15
- Connecticut Route 15
- Delaware Route 15
- Florida State Road 15
- * County Road 15 (Orange [County, Florida)]
- * County Road 15 (Seminole County, Florida)
- Georgia State Route 15
- Hawaii Route 15
- Illinois Route 15
- Indiana State Road 15
- Iowa Highway 15
- K-15 (Kansas highway)
- Kentucky Route 15
- Louisiana Highway 15
- * Louisiana State Route 15
- Maine State Route 15
- Massachusetts Route 15
- M-15 (Michigan highway)
- Minnesota State Highway 15
- * County Road 15 (Hennepin County, Minnesota)
- * County Road 15 (Ramsey County, Minnesota)
- * County Road 15 (Scott County, Minnesota)
- * County Road 15 (Washington County, Minnesota)
- Mississippi Highway 15
- Missouri Route 15
- Nebraska Highway 15
- * Nebraska Recreation Road 15B
- * Nebraska Recreation Road 15C
- Nevada State Route 15
- New Jersey Route 15
- * County Route 15 (Monmouth County, New Jersey)
- New Mexico State Road 15
- New York State Route 15
- * County Route 15 (Allegany County, New York)
- ** County Route 15B (Allegany County, New York)
- * County Route 15 (Cattaraugus County, New York)
- * County Route 15 (Chautauqua County, New York)
- * County Route 15 (Franklin County, New York)
- * County Route 15 (Genesee County, New York)
- * County Route 15 (Hamilton County, New York)
- * County Route 15 (Jefferson County, New York)
- * County Route 15 (Monroe County, New York)
- * County Route 15 (Niagara County, New York)
- * County Route 15 (Oneida County, New York)
- * County Route 15 (Ontario County, New York)
- * County Route 15 (Orange County, New York)
- * County Route 15 (Orleans County, New York)
- * County Route 15 (Oswego County, New York)
- * County Route 15 (Putnam County, New York)
- * County Route 15 (Rensselaer County, New York)
- * County Route 15 (Rockland County, New York)
- * County Route 15 (Schuyler County, New York)
- * County Route 15 (Steuben County, New York)
- * County Route 15 (Suffolk County, New York)
- * County Route 15 (Tioga County, New York)
- * County Route 15 (Ulster County, New York)
- * County Route 15 (Westchester County, New York)
- * County Route 15 (Wyoming County, New York)
- * County Route 15 (Yates County, New York)
- North Carolina Highway 15
- North Dakota Highway 15
- Ohio State Route 15
- Oklahoma State Highway 15
- Oregon Route 15
- Pennsylvania Route 15
- Rhode Island Route 15
- South Dakota Highway 15
- * South Dakota Highway 15Y
- Tennessee State Route 15
- Texas State Highway 15
- * Texas State Highway Loop 15
- * Farm to Market Road 15
- * Texas Park Road 15
- Utah State Route 15
- Vermont Route 15
- State Route 15 (Virginia 1918-1923)
- * State Route 15 (Virginia 1923-1933)
- Washington State Road 15
- * Primary State Highway 15 (Washington)
- * Secondary State Highway 15B (Washington)
- * Secondary State Highway 15C (Washington)
- * Secondary State Highway 15D (Washington)
- West Virginia Route 15
- Wisconsin Highway 15