The 2017–18 Valparaiso Crusaders men's basketball team represented Valparaiso University during the 2017–18 NCAA Division I men's basketball season. The Crusaders, led by second-year head coach Matt Lottich, played their home games at the Athletics–Recreation Center as first-year members of the Missouri Valley Conference. They finished the season 15–17, 6–12 in MVC play to finish in last place. They lost in the first round of the Missouri Valley tournament to Missouri State.