Route 23, or Highway 23, can refer to:

International

European route E23

Austria

Autobahn Südosttangente Wien

Canada

Ontario Highway 23

Czech Republic

I/23 Highway; Czech: Silnice I/23

India

National Highway 23 (India)

Japan

Japan National Route 23

Mexico

New Zealand

State Highway 23

United Kingdom

British A23 (Brighton-London)

M23 (Crawley-Marling Glen)

United States

U.S. Route 23

Alabama State Route 23

Arkansas Highway 23

• Arkansas Highway 23W (former)

Arkansas Highway 23W (former)

California State Route 23

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

Maine State Route 23

Maryland Route 23

Massachusetts Route 23

M-23 (Michigan highway) (former)

Minnesota State Highway 23

Mississippi Highway 23

The following highways in Virginia have been known as State Route 23:

State Route 23 (Virginia 1918-1933), Stuart to West Virginia towards Bluefield

U.S. Route 23 (Virginia), early 1930s - present

Route 23 is a bus route operated by the Maryland Transit Administration in Baltimore and its suburbs. The line currently runs the Wal-Mart parking lot in Catonsville, Maryland east through downtown Baltimore to the Fox Ridge community in Essex, serving the corridors of Edmondson Avenue on the west side and Eastern Avenue on the east, and the communities of Edmondson Village, Allendale, Rosemont, Patterson Park, and Eastpoint, and is one of the most heavily used bus routes operated by the MTA.

The bus route is the successor to the 14 Ellicott City, 23 Back and Middle Rivers, and East Fayette Street streetcar lines.

History

Route 23 began its service as an electrified rail and streetcar line between Middle River and downtown Baltimore in 1897 along much of the same route as today. The streetcar operated until 1942, until the line was converted into a rubber-tire bus service. During these years, Route 23 did not serve the west side of town at all. The western portion of today's route was primarily served by the no. 14 streetcar (no relationship to today's Route 14 that operates between Baltimore and Annapolis). Service was also provided through Essex and Middle River on the Back River Trolley.