The 2017–18 San Jose State Spartans men's basketball team represented San Jose State University in the 2017–18 NCAA Division I men's basketball season. Led by first-year head coach Jean Prioleau, the Spartans played their home games at the Event Center Arena as members of the Mountain West Conference. They finished the season 4–26, 1–17 in Mountain West play to finish in last place. They lost in the first round of the Mountain West tournament to Wyoming.