The 2017–18 Illinois State Redbirds men's basketball team represented Illinois State University during the 2017–18 NCAA Division I men's basketball season.

The Redbirds, led by sixth-year head coach Dan Muller, played their home games at Redbird Arena in Normal, Illinois as a member of the Missouri Valley Conference.

As the number one seed in the MVC tournament, they defeated Evansville in their quarterfinal game and Southern Illinois in their semifinal game before being beaten by Wichita State in the final.

Sources: In the conference's preseason poll, the Redbirds were picked to finish in fourth place in the MVC.

[1] Junior forward Phil Fayne was named to the preseason All-MVC second team.