Route 15 is a bus route operated by the Maryland Transit Administration in Baltimore and its suburbs. The line currently runs from Security Square Mall, Westview Mall, Windsor Hills, or Walbrook Junction through downtown Baltimore and northeast to Overlea, with selected peak hour express trips to Perry Hall. The main roads on which it operates include Security Boulevard, Windsor Mill Road, Forest Park Avenue, Poplar Grove Street, Edmondson Avenue, Saratoga Street, Gay Street, and Belair Road, and is one of the most heavily used bus routes operated by the MTA.

CityLink Navy is a bus route operated by the Maryland Transit Administration in Baltimore. It replaced Route 1 in 2017. The bus route is the successor to the 1 Gilmor Street, 2 Carey Street, and 2 Fort Avenue streetcar lines.