The Sheriff Road–Capitol Heights Line, designated Route F14, is a bus route that operates Monday to Saturday that is operated by the Washington Metropolitan Area Transit Authority between New Carrollton station of the Orange Line of the Washington Metro and Naylor Road station of the Green Line of the Washington Metro.

The line connects New Carrollton to Temple Hills without having to take Metrorail or enter Washington DC.

The F14 began operation as the Sheriff Road Line under the Washington Marlboro & Annapolis Motor Lines Inc. (WM&A) in 1951, to operate between the Mayfair neighborhood in Northeast Washington D.C. and Glenn Dale Hospital in Glenn Dale, Maryland, mostly operating along Kenilworth Terrace, Sheriff Road, and Palmer Highway.

The route would enter Capitol Heights station bus bays when operating to New Carrollton.

During the same time, F14 was rerouted to operate between New Carrollton and the intersection of Martin Luther King Jr. Highway & Belle Haven Drive, via the Glenarden neighborhood and Landover Mall.

[6] On January 13, 2001, when Naylor Road station opened, route F14 was extended from Bradbury Heights to Naylor Road station via Southern Avenue and Branch Avenue.