Bayer 04 Leverkusen played the UEFA Champions League after finishing in 3rd place in the Bundesliga in 2003-04 and advanced to the Round of 16 in a tough group with Real Madrid, AS Roma and Dynamo Kyiv.

The best results were a 5-1 win against Bayern Munich in the Bundesliga and a 3-0 win against Real Madrid in the Champions League.

Dimitar Berbatov was the season top scorer with 26 goals.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.