1903–04 collegiate men's basketball season in the United States

The 1903–04 collegiate men's basketball season in the United States began in December 1903, progressed through the regular season, and concluded in March 1904.

Season headlines

 * In February 1943, the Helms Athletic Foundation retroactively selected Columbia as its national champion for the 1903–04 season.
 * In 1995, the Premo-Porretta Power Poll retroactively selected Columbia as its national champion for the 1903–04 season.

Conference winners
NOTE: The Western Conference (the future Big Ten Conference) did not sponsor an official conference season or recognize a regular-season champion until the 1905–06 season. In 1903–04, Chicago (7–0) finished with the best winning percentage (1.000) and Purdue (11–2) and Wisconsin (11–4) with the most wins.

Independents
A total of 47 college teams played as independents. Among them, (11–1), (13–2), Holy Cross (10–2), (19–5), (10–3), (10–4), Colgate (12–5), and Syracuse (11–8) won 10 or more games.