Dorchester is a station on the Port Authority of Allegheny County's light rail network, located in Bethel Park, Pennsylvania. The street level stop was added to the route to serve the nearby Dorchester Apartment complex, for which the stop was named. A variety of apartment blocks have been located near the stop, as part of a transit village model designed to encourage public transit as the primary form of transportation for residents.

In May 2024, the Federal Transit Administration awarded The T $8 million to construct accessible platforms at ten Red Line stops, including Dorchester.