SH 23

Route 23, or Highway 23, can refer to:

International

*European route E23

Australia

* Federal Highway (Australia)
* Monaro Highway
* (South Australia)
* Dorat Road (not signed everywhere)

Austria

* Autobahn Südosttangente Wien

Canada

* Alberta Highway 23
* British Columbia Highway 23
* Manitoba Highway 23
* Ontario Highway 23
* Prince Edward Island Route 23
* Saskatchewan Highway 23

Costa Rica

* National Route 23 (Costa Rica), National Route 23

Cuba

* Highway I–23 (Cuba), Highway I–23
** Highway 4–I–23 (Cuba), Highway 4–I–23
** Highway 5–I–23 (Cuba), Highway 5–I–23
** Highway 6–I–23 (Cuba), Highway 6–I–23
* Highway 2–23 (Cuba), Highway 2–23

Czech Republic

* I/23 Highway (Czech Republic), I/23 Highway; Czech: :cz:Silnice I/23, Silnice I/23

Finland

* Finnish national road 23

Greece

* A23 road (Greece), A23 road, a limited-access road from Komotini to the Makaza, Makaza pass

India

* National Highway 23 (India)

Ireland

* N23 road (Ireland)

Israel

* Carmel Tunnels, Highway 23

Italy

* Autostrada A23 (Italy), Autostrada A23

Japan

* Japan National Route 23
* Higashi-Meihan Expressway
* Ise Expressway

Korea, South

* National Route 23 (South Korea), National Route 23
*Gukjido 23

Malaysia

* Malaysia Federal Route 23

Mexico

*Mexican Federal Highway 23

New Zealand

* New Zealand State Highway 23, State Highway 23

Norway

* Norwegian National Road 23

United Kingdom

* A23 road, British A23 (Brighton-London)
* M23 motorway, M23 (Crawley-Marling Glen)
* A23 road (Northern Ireland)

United States

* U.S. Route 23
* Alabama State Route 23
* Arkansas Highway 23
** Arkansas Highway 23W (former)
* California State Route 23
** County Route A23 (California)
** County Route J23 (California)
* Colorado State Highway 23
* Delaware Route 23
* Florida State Road 23
* Georgia State Route 23
* Illinois Route 23
* Indiana State Road 23
* Iowa Highway 23
* K-23 (Kansas highway)
* Louisiana Highway 23
** Louisiana State Route 23
* Maine State Route 23
* Maryland Route 23
**Maryland Route 23B (former)
* Massachusetts Route 23
* M-23 (Michigan highway) (former)
* Minnesota State Highway 23
** County Road 23 (Anoka County, Minnesota)
** County Road 23 (Dakota County, Minnesota)
** County Road 23 (Ramsey County, Minnesota)
* Mississippi Highway 23
* Missouri Route 23
**Missouri Route 23 (1922) (former)
* Montana Highway 23
* Nebraska Highway 23
* Nevada State Route 23 (former)
* New Jersey Route 23
** County Route 23 (Monmouth County, New Jersey)
* New Mexico State Road 23
* New York State Route 23
** County Route 23 (Allegany County, New York)
** County Route 23 (Cattaraugus County, New York)
** County Route 23 (Cayuga County, New York)
** County Route 23 (Clinton County, New York)
** County Route 23 (Dutchess County, New York)
** County Route 23 (Genesee County, New York)
** County Route 23B (Greene County, New York)
** County Route 23C (Greene County, New York)
** County Route 23 (Herkimer County, New York)
** County Route 23 (Lewis County, New York)
** County Route 23 (Livingston County, New York)
** County Route 23 (Niagara County, New York)
** County Route 23 (Onondaga County, New York)
** County Route 23 (Orange County, New York)
** County Route 23 (Oswego County, New York)
** County Route 23 (Otsego County, New York)
** County Route 23 (Putnam County, New York)
** County Route 23 (Rensselaer County, New York)
** County Route 23 (Rockland County, New York)
** County Route 23 (Schuyler County, New York)
** County Route 23 (St. Lawrence County, New York)
** County Route 23 (Suffolk County, New York)
** County Route 23 (Sullivan County, New York)
** County Route 23 (Tioga County, New York)
** County Route 23 (Warren County, New York)
** County Route 23 (Washington County, New York)
* North Carolina Highway 23 (former)
* North Dakota Highway 23
** North Dakota Highway 23B (McKenzie County)
** North Dakota Highway 23B (Mountrail County)
* Ohio State Route 23 (1923-1927) (former)
* Oklahoma State Highway 23
* Oregon Route 23 (former)
* Pennsylvania Route 23
* South Carolina Highway 23
* South Dakota Highway 23 (former)
* Tennessee State Route 23
* Texas State Highway 23
** Texas State Highway Loop 23 (former)
** Texas State Highway Spur 23 (former)
** Farm to Market Road 23
** Texas Park Road 23
* Utah State Route 23
* Vermont Route 23
* State Route 23 (Virginia 1918-1933) (former)
* Washington State Route 23
* West Virginia Route 23
* Wisconsin Highway 23

;Territories
* Puerto Rico Highway 23

See also

*List of A23 roads
*List of highways numbered 23A

{{Road index, 023