The District Heights–Seat Pleasant Line, designated Route V14, is a daily bus route operated by the Washington Metropolitan Area Transit Authority between the Deanwood station of the Orange Line of the Washington Metro and Penn Mar Shopping Center in District Heights.

Route V14 operates daily between Deanwood station and Penn Mar Shopping Center.

Select trips are also operated between Penn Mar Shopping Center and Addison Road station only.

Routes V14 and V15 were created as brand new Metrobus Routes to provide alternative Metrobus service between the newly opened Addison Road station & Penn Mar Shopping Center on January 4, 1981, when the V12 was shortened to operate between Addison Road and Potomac Avenue stations only.

The routing between Addison Road and Penn Marr Shopping Center mostly remained the same other than for a small segment in the Pepper Mill Village neighborhood that was altered.