The Benning Heights–M Street Line, designated Route V1, was a weekday peak-hour only bus route operated by the Washington Metropolitan Area Transit Authority between the neighborhood of Benning Heights and Smithsonian station of the Blue, Orange, and Silver Lines of the Washington Metro.

Route V1 provided service between the neighborhood of Benning Heights, located in northeast Washington, D.C., and Smithsonian station, mostly running along M Street, Pennsylvania Avenue, and Minnesota Avenue in the weekday peak-hour direction only.

This route provided Benning Heights residents easy access to Downtown without having to take the train.

Route V1 originally operated as part of the Pan Am Parking Lot/Vienna Shuttle Line between Vienna/Fairfax–GMU station and Pan Am Shopping Center until January 22, 2001 when it was discontinued due to the new garage on the south side of Vienna/Fairfax-GMU station opened on January 18, 2001.

WMATA reasons that there was low ridership on routes in Southwest and the reroutes would provide a better balance of capacity and demand.

[8] Under the study, it goes as the following to routes U2, V7, V8, and V9: The reason for the changes was to enhance connectivity between points of regional demand, create a better balance of capacity and demand lines serving the Minnesota Avenue, and reduce or eliminate service with low productivity on the line.

[17] All route V1 service was suspended beginning on March 16, 2020 due to Metro's response to the COVID-19 pandemic.

[18] On September 26, 2020, WMATA proposed to eliminate all V1 service due to low federal funds.