The 2 Broadway – Seventh Avenue Express is a rapid transit service in the New York City Subway's A Division. Its route emblem, or "bullet", is colored red since it uses the IRT Broadway – Seventh Avenue Line through most of Manhattan.
The 2 runs via White Plains Road in the Bronx, Lenox Avenue / Broadway–Seventh Avenue in Manhattan, and Eastern Parkway / Nostrand Avenue in Brooklyn.
The 2 operates at all times between 241st Street in Wakefield, Bronx and Flatbush Avenue in Flatbush, Brooklyn, making express stops in Manhattan between 96th Street and Chambers Street (except at night when it serves all stops), and local elsewhere; limited rush hour service originates and terminates at New Lots Avenue in East New York, Brooklyn instead of Flatbush Avenue.
The first section of what became the current 2 entered service on November 26, 1904, from the temporary 180th Street–Bronx Park terminal via the West Farms El to 149th Street–3rd Avenue. On July 10, 1905, the connection between the IRT Lenox Avenue Line and IRT White Plains Road Line (which was previously served by the Third Avenue El) opened, allowing subway service from Manhattan to the Bronx.
On January 9, 1908, the Joralemon Street Tunnel opened, connecting the current IRT Lexington Avenue Line to Brooklyn. At this time, trains ran from East 180th Street to Borough Hall. On May 1, 1908, trains were extended to Nevins Street and Atlantic Avenue.
On March 3, 1917, the IRT White Plains Road Line was extended to 219th Street. On March 31, 1917, the IRT White Plains Road Line was extended to 238th Street–Nereid Avenue, and to Wakefield–241st Street on December 13, 1920. On August 1, 1918, the entire IRT Broadway–Seventh Avenue Line was completed. On April 15, 1919, the Clark Street Tunnel, connecting the line to Brooklyn, opened as well.
On August 23, 1920, the 2 was extended to Flatbush Avenue at all times when the IRT Nostrand Avenue Line opened, as well as the rest of the Brooklyn IRT. Some rush hour trains also began running to New Lots Avenue on the IRT New Lots Line instead of Flatbush Avenue.
After the September 11, 2001, the 2 became a local in Manhattan at all times. Normal daytime express service in Manhattan on the line resumed on September 15, 2002.
As a result of planned repairs to Hurricane Sandy-related damage on the Clark Street Tube, every weekend between July 2017 and July 2018, the 2 makes all stops between 96th and Chambers Streets, then rerouted to/from South Ferry, with the 5 replacing it in Brooklyn.