The 2017–18 Stony Brook Seawolves men's basketball team represented Stony Brook University in the 2017–18 NCAA Division I men's basketball season. The Seawolves were led by second-year head coach Jeff Boals and played their home games at Island Federal Credit Union Arena in Stony Brook, New York as members of the America East Conference. They finished season 13–19, 7–9 in America East play to finish in fifth place. They defeated Albany in the quarterfinals of the America East tournament before losing in the semifinals to Vermont. Freshman forward Elijah Olaniyi won the 2018 America East Rookie of the Year award, averaging 7.5 points and 3.8 rebounds in his debut season.