G (New York City Subway service)

Brooklyn-Queens Crosstown
A G train of R160s at Court Square
Northern end	Court Square
Southern end	Church Avenue
Stations	21
Rolling stock	R160[1][2] (Rolling stock assignments subject to change)
Depot	Jamaica Yard
Started service	August 19, 1933; 91 years ago (1933-08-19)
Route map Legend no regular service via Queens Boulevard  G  Court Square 21st Street Queens Brooklyn Greenpoint Avenue Nassau Avenue Metropolitan Avenue Broadway Flushing Avenue Myrtle–Willoughby Avenues Bedford–Nostrand Avenues Classon Avenue Clinton–Washington Avenues Fulton Street ​ Euclid Avenue & The Rockaways ​ via Fulton Street Hoyt–Schermerhorn Streets ​ Manhattan via 8th Avenue New York Transit Museum (formerly Court Street) ​ to Jamaica via 6th Avenue Bergen Street Carroll Street Smith–Ninth Streets Fourth Avenue Seventh Avenue 15th Street–Prospect Park Fort Hamilton Parkway Church Avenue  G  ​ Coney Island via Culver Legend Lines used by the Other services sharing tracks with the Unused lines, connections, or service patterns  G  Termini of services Cross-platform interchange Platforms on different levels This diagram: view talk edit

The G Brooklyn-Queens Crosstown^[3] is an 11.4-mile-long (18.3 km)^[4] rapid transit service in the B Division of the New York City Subway. Its route emblem, or "bullet", is colored light green since it uses the IND Crosstown Line.^[5]

The G operates at all times between Court Square in Long Island City, Queens, and Church Avenue in Kensington, Brooklyn. It is the only non-shuttle service in the system that does not run within the borough of Manhattan. The G serves two stations in Queens—Court Square and 21st Street, both in Long Island City. Prior to 2010, it served all stations on the IND Queens Boulevard Line between Court Square and 71st Avenue in Forest Hills. In 1939 and 1940, the then-designated GG also used the now-demolished IND World's Fair Line to access the 1939 New York World's Fair. The GG, which became the G in 1985, had its southern terminal at Smith–Ninth Streets from 1976 to 2009.

In the 21st century, the G suffered from a wide range of issues that has resulted in complaints by people living along the route. These issues included a dearth of transfers to other services; the lack of direct service to Manhattan; short train lengths; and low frequencies. Since the 2000s, several improvements have been made to the G, including a route extension in Brooklyn and a full-route audit in 2013 that identified solutions for issues on the G service. As of 2023^[update], additional improvements are planned for the G route, including the automation of the entire route.