The 2022–23 James Madison Dukes men's basketball team represents James Madison University in the 2022–23 NCAA Division I men's basketball season. The Dukes, led by third-year head coach Mark Byington, play their home games at the Atlantic Union Bank Center in Harrisonburg, Virginia as members of the Sun Belt Conference. The season marks the Dukes' first season in the Sun Belt Conference as they had previously been members of the Colonial Athletic Association.