The 2003–04 Valparaiso Crusaders men's basketball team represented Valparaiso University during the 2003–04 NCAA Division I men's basketball season.

The Crusaders, led by 16th-year head coach Homer Drew, played their home games at the Athletics–Recreation Center as members of the Mid-Continent Conference.

Valpo finished atop the Mid-Con regular season standings, and went on to win the Mid-Con tournament to receive an automatic bid to the NCAA tournament.

2 seed Gonzaga, 76–49,[2] to finish with a record of 18–13 (11–5 Mid-Con).

This season marked the final trip to the NCAA tournament for Coach Drew, and capped a run of seven NCAA tournament appearances in an eight-year stretch.