The 2003–04 St. Louis Blues season was the 37th for the franchise in St. Louis, Missouri. The Blues qualified for the Stanley Cup playoffs for the 25th straight seasons, the team's final playoff appearance until 2009. After finishing the regular season with a record of 39 wins, 30 losses, 11 ties and two overtime losses, the Blues were eliminated in the Western Conference Quarterfinals in five games by the San Jose Sharks.