The 2004–05 Deutsche Eishockey Liga season was the 11th season since the founding of the Deutsche Eishockey Liga (English: German Ice Hockey League). The Eisbären Berlin (English: Polar Bears Berlin) became first time German Champion, a feat they will repeat a number of times in the next seasons. The Kassel Huskies was allowed to stay in the league, despite losing the play-down, as Grizzly Adams Wolfsburg lost its DEL license.
While the Kassel Huskies should have been relegated to the 2. Bundesliga but due to the Grizzly Adams losing their DEL license, they were allowed to stay. The Grizzly Adams lost the license as their new Arena was not finished in time, and the old one did not conform to the DEL rules.