2024–25 Illinois Fighting Illini men's basketball team

The 2024–25 Illinois Fighting Illini men's basketball team will represent the University of Illinois during the 2024–25 NCAA Division I men's basketball season. The Illini are led by eighth-year head coach Brad Underwood. The Illini will play their home games at the State Farm Center in Champaign, Illinois as members of the Big Ten Conference.

Previous season
The Illini finished the season 14-6 in Big Ten play, good for second place. The team beat Wisconsin in the Big Ten Tournament Championship. The team was then awarded the #3 seed in the East region of the NCAA Tournament, in which it advanced to the Elite Eight.

Offseason
After the previous season ended, Marcus Domask sought a medical hardship waiver from the NCAA to play in the 2024-25 season. After his waiver application was denied, he declared for the NBA draft.

After three years at Illinois, Assistant Coach Chester Frazier joined West Virginia's coaching staff. This resulted in Sencire Harris, who had previously pledged to stay with the team, to enter the transfer portal, with Amani Hansberry soon following, as both were primarily recruited by Frazier. Both players ultimately followed Frazier to West Virginia.

Replacing Frazier on the coaching staff was Orlando Antigua, who had previously served as assistant coach at Illinois prior to a stint at Kentucky.

Following Will Riley's committing and reclassifying to 2024, Jeremiah Fears decommitted from the Illini, due to his desire to reclassify to 2024 as well.

Incoming transfers
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Roster
Note: While listed above as a graduate student for NCAA eligibility purposes, Humrichous is a fifth-year senior working towards his bachelor's degree.

Schedule and results
!colspan=12 style="| Regular season

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