The 2017–18 James Madison Dukes men's basketball team represented James Madison University during the 2017–18 NCAA Division I men's basketball season.

The Dukes, led by second-year head coach Louis Rowe, played their home games at the James Madison University Convocation Center in Harrisonburg, Virginia as members of the Colonial Athletic Association (CAA).

They lost in the first round of the CAA tournament to Drexel.

The Dukes lost in the quarterfinals of CAA tournament to College of Charleston.

The season was the first for head coach Louis Rowe.