The 2014–15 Illinois State Redbirds men's basketball team represented Illinois State University during the 2014–15 NCAA Division I men's basketball season. The Redbirds, led by third-year head coach Dan Muller, played their home games at Redbird Arena in Normal, Illinois as a member of the Missouri Valley Conference. They finished the season 22–13, 11–7 in conference play, to finish in a tie for third place. As the number four seed in the MVC tournament, they defeated Evansville in a quarterfinal game and eighth ranked Wichita State in a semifinal game before succumbing to eleventh ranked Northern Iowa in the final. They received an at-large bid to the National Invitation Tournament where they won over Green Bay in the first round before losing to Old Dominion in the second round.