The 2018–19 Valparaiso Crusaders men's basketball team represented Valparaiso University during the 2018–19 NCAA Division I men's basketball season. The Crusaders, led by third-year head coach Matt Lottich, played their home games at the Athletics–Recreation Center as second-year members of the Missouri Valley Conference. They finished the season 15–18, 7–11 in MVC play to finish in a tie for eighth place. As the No. 9 seed in the MVC tournament, they defeated Indiana State in the first round before losing to Loyola in the quarterfinals.