2013–14 Illinois Fighting Illini men's basketball team

The 2013–14 Illinois Fighting Illini men's basketball team represented the University of Illinois at Urbana–Champaign in the 2013–14 NCAA Division I men's basketball season. Led by second year head coach John Groce, the Illini played their home games at State Farm Center and were members of the Big Ten Conference. They finished the season 20–15, 7–11 in Big Ten play to finish in a tie for eighth place. They advanced to the quarterfinals of the Big Ten Tournament where they lost to Michigan. They were invited to the National Invitation Tournament where they defeated Boston University in the first round before losing in the second round to Clemson.