The 2004 Republican National Convention took place from August 30 to September 2, 2004, at Madison Square Garden in New York City, New York. The convention is one of a series of historic quadrennial meetings at which the Republican candidates for president and vice president, and party platform are formally adopted. Attendance included 2,509 delegates and 2,344 alternate delegates from the states, territories and the District of Columbia. The convention marked the formal end of the active primary election season. As of 2023, it is the most recent major-party nominating convention to be held in New York City.

Madison Square Garden, colloquially known as the Garden or by its initials MSG, is a multi-purpose indoor arena in New York City. It is located in Midtown Manhattan between Seventh and Eighth Avenues from 31st to 33rd Street above Pennsylvania Station. It is the fourth venue to bear the name "Madison Square Garden"; the first two, opened in 1879 and 1890 respectively, were located on Madison Square, on East 26th Street and Madison Avenue, with the third Madison Square Garden (1925) farther uptown at Eighth Avenue and 50th Street.