The 2018–19 Marist Red Foxes men's basketball team represented Marist College in the 2018–19 NCAA Division I men's basketball season. The team played its home games in Poughkeepsie, New York for the 42nd consecutive year at the McCann Arena, which has a capacity of 3,200. This season marked the program's 38th Division I season and its 22nd consecutive year as a member of the Metro Atlantic Athletic Conference. The team was led by first-year head coach John Dunne, who took the open head coaching position after spending the last 12 seasons at conference rival Saint Peter's University. They finished the 2018–19 season 12–19 overall, 7–11 in MAAC play to finish in eighth place. As the No. 8 seed in the 2019 MAAC tournament, they were defeated by No. 9 seed Saint Peter's in the first round 68–7