LocalLink 94, formerly Route 27 is a bus route operated by the Maryland Transit Administration in Baltimore. The line currently runs from the Sinai Hospital in northwest Baltimore to Fort McHenry in South Baltimore through downtown. The line also serves the communities of Levindale, Mt. Washington, Cross Keys, Hampden, and South Baltimore. The bus route is the successor to the 10 Roland Park, 12 Westport, and 25 Mount Washington streetcar lines.

The northern portion of the present Route 27 is nearly identical to the No. 25 streetcar line that operated during Baltimore's streetcar era. The Hampden line in Baltimore was the first electric streetcar that operated in the United States. The no. 25 designation was used for service on Falls Road up until 1959. Service on Falls Road was provided by Route 10 between 1959 and 1982, then by Route 27 since 1982.

The no. 25 streetcar started operating in 1897. The initial route of the line was along the Falls Road corridor (current location of the Baltimore Streetcar Museum). The ultimate goal of the construction of the line was to provide rail service to Pennsylvania. The line then operated to Gwynn Oak Junction (later the terminus of several other streetcar and bus lines), and had branches to Cheswolde and Pikesville. In 1901, the route was modified to serve Remington and Hampden. In 1923, the line was shortened from Pikesville to Key Avenue in Cheswolde. In 1936, Camden Station was made into the southern terminus. .

The conversion from a streetcar line to buses took place in stages in 1949. First, the no. 25 bus line operated from Mt. Washington to Camden Station, and the nos. 47 and 48 streetcars from Mt. Washington to Key Avenue and Belvedere loop respectively (service to Gwynn Oak was provided by other lines). The Mt. Washington to Belvedere section became a part of the no. 25 bus in 1951. No. 47 service would eventually be absorbed into Bus Route 5, and later become a separate line identified as Route 58. The no. 25 bus line would become a part of Route 10 in 1959, which it would remain a part of until 1982. There were two routings through North Baltimore between 36th Street and Coldspring Lane: one along Falls Road, and the other via Roland Avenue (the original routing of Route 10). This structure remained in place as part of Route 27 until 2008.

In 1970, the no. 25 designation was assigned to a line that is operated by the Baltimore Streetcar Museum.

In 1982, Route 10, which at the time was operating from Pimlico to Dundalk, was once again split to allow better schedule adherence. But with no. 25 being unavailable due to its use for the streetcar museum, the new line for the north end was given the No. 27 designation that it has today. The two lines at the time of the split had overlapped between State Center and Little Italy, though both lines have since been modified, and their routes presently do not overlap, but do intersect in the downtown area.

The no. 27 designation had previously been used for one other service in Baltimore transit history. The Washington Boulevard streetcar line, which started operating in 1905, was designated no. 27. This was converted into an electric trolley bus in 1938, and a rubber tire bus in 1957, when it absorbed then Route 52, and was extended to Lansdowne. In 1959, this route was combined with Bus Route 11, and remained a part of Route 11 until 2008, when the service was split from Route 11, and became a part of Route 36.

In 1992, in conjunction with the opening of the Central Light Rail Line, Route 27 was truncated to Camden Yards. Service between Howard Street and Little Italy, and selected trips to Canton were eliminated. The line's frequency was also reduced, as the line duplicated light rail service.