Dorsey station is a passenger rail station on the MARC Camden Line between Washington, DC and Baltimore's Camden Station in Dorsey, Maryland. The station is located at Exit 7 on Maryland Route 100, a.k.a.; the Paul T. Pitcher Memorial Highway. It was built by MARC in 1996 as a replacement for a former Baltimore and Ohio Railroad station located on Route 103 east of Station House Drive. The former B&O station site is now a condominium development.

The Camden Line is a MARC commuter rail line that runs for 39 mi (63 km) between Union Station, Washington, D.C., and Camden Station, Baltimore, Maryland, over the CSX Capital Subdivision and Baltimore Terminal Subdivision. The Baltimore & Ohio Railroad began running commuter service from Baltimore to Ellicott City over part of the current line's trackage on May 24, 1830, making this corridor one of the country's oldest rail routes still in operation. The line was extended to Washington on August 25, 1835. The Camden Line is the shortest MARC line. As of 2019, the Camden Line is a weekday-only service.