1933–34 NCAA men's basketball season

The 1933–34 NCAA men's basketball season began in December 1933, progressed through the regular season and conference tournaments, and concluded in March 1934.

Rule changes

 * The "10-second" rule went into effect, requiring the team on offense to get the ball past the midcourt line within 10 seconds.
 * A new substitution rule allowed each player to re-enter a game twice. Previously, each player could re-enter a game only once.
 * The number of referees increased from one to two.

Season headlines

 * The Metropolitan New York Conference began play, with 10 original members.
 * In February 1943, the Helms Athletic Foundation retroactively selected Wyoming as its national champion for the 1933–34 season.
 * In 1995, the Premo-Porretta Power Poll retroactively selected Kentucky as its national champion for the 1933–34 season.

Conference membership changes
NOTE: Columbia joined the Metropolitan New York Conference while remaining a member of the Eastern Intercollegiate Basketball League. It retained its membership in both until 1939.

Major player of the year awards

 * Helms Player of the Year: Wesley Bennett, Westminster (Pa.) (retroactive selection in 1944)

Coaching changes
A number of teams changed coaches during the season and after it ended.