The Oklahoma State Cowboys basketball team represents Oklahoma State University in Stillwater, Oklahoma, United States in NCAA Division I men's basketball competition. The Cowboys currently compete in the Big 12 Conference.
Since 1938, the team has played its home games in Gallagher-Iba Arena. Prior to 1957, the school was known as Oklahoma A&M College, and the teams were nicknamed the Aggies.
On March 21, 2016, Brad Underwood was hired as head coach at Oklahoma State, replacing the fired Travis Ford. Just short of one year, on March 18, 2017, Underwood left the program for Illinois. Assistant Mike Boynton was promoted to head coach on March 24.