The 2017–18 Iona Gaels men's basketball team represented Iona College during the 2017–18 NCAA Division I men's basketball season. The Gaels, led by eighth-year head coach Tim Cluess, played their home games at the Hynes Athletic Center in New Rochelle, New York as members of the Metro Atlantic Athletic Conference. They finished the season 20–14, 11–7 in MAAC play to finish in fourth place. As the No. 4 seed in the 2018 MAAC tournament, they defeated Manhattan, Saint Peter's and Fairfield 83–71, to become champions of the MAAC Tournament for the third consecutive time. They earned the MAAC's automatic bid to the NCAA tournament, where they lost in the first round to Duke, 67–89.