CityLink Orange (abbreviated OR) is a bus route operated by the Maryland Transit Administration in Baltimore and its suburbs.

The line currently runs from 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.

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

Riders complained of overcrowded buses, that the route was slow and unreliable, and that service to certain communities was sparsely provided.

In 2005, as part of the Greater Baltimore Bus Initiative, a comprehensive overhaul for the region's transit system, Route 23 faced numerous changes.

The line, which overlaps on much of the route, but serves the Security Boulevard corridor rather than Catonsville, provides limited-stop service for faster travel.

Most notably, businesses along Saratoga Street in downtown Baltimore reported a massive loss in customers who waited for buses near their shops.

], Route 23 does not provide any service east of Back River Neck Road, but the line did in the past.

Today, riders wishing to travel to points along the Eastern Boulevard corridor east of Back River Neck Road must transfer to another line.

Detective Jimmy McNulty rides the 23 Edmondson Village bus to a crime scene in season 5 episode 2 of The Wire.