The North Shore Connector is a light-rail extension opened in 2012 in Pittsburgh, Pennsylvania. The connector extends the Pittsburgh Light Rail system from its previous terminus at Gateway Center Station in the Central Business District to the new North Side Station and Allegheny Station on the North Shore by way of a tunnel under the Allegheny River. The Connector extends the light rail system's "Free Fare Zone", enabling passengers to ride to and from Pittsburgh's rapidly growing North Shore neighborhood for free.

The Pittsburgh Light Rail is a 26.2-mile (42.2 km) light rail system in Pittsburgh, Pennsylvania, and surrounding suburbs. It operates as a deep-level subway in Downtown Pittsburgh, but runs mostly at-grade in the suburbs south of the city. The system is largely linear in a north-south direction, with one terminus near Pittsburgh's central business district and two termini in the South Hills. The system is owned and operated by Pittsburgh Regional Transit. The T is one of the surviving first-generation streetcar systems in North America, with the oldest portions of the network dating back to 1903 and the Pittsburgh Railways. It is also one of only three light rail systems in the United States that continues to use the broad 5 ft 2+1⁄2 in Pennsylvania Trolley Gauge on its lines instead of the 4 ft 8+1⁄2 in standard gauge. In 2023, the system had a ridership of 3,417,100.