2003–04 FIS Ski Jumping World Cup

The 2003–04 FIS Ski Jumping World Cup was the 25th World Cup season of ski jumping. It began on 28 November 2003 at Ruka in Kuusamo, Finland, and finished on 14 March 2004 at Holmenkollbakken in Oslo, Norway. The defending champion from the previous three seasons was Adam Małysz. The overall World Cup was won by Janne Ahonen, who gained his first title. Roar Ljøkelsøy placed second, with Bjørn Einar Romøren in third. The Nations Cup was won by Norway.