The 2017–18 UC Riverside Highlanders men's basketball team represented the University of California, Riverside during the 2017–18 NCAA Division I men's basketball season. The Highlanders, led by interim head coach Justin Bell, played their home games at the Student Recreation Center Arena in Riverside, California, as members of the Big West Conference. They finished the season 9–22, 4–12 in Big West play to finish in a tie for seventh place. As the No. 8 seed in the Big West tournament, they lost in the quarterfinals to UC Davis.