The 2004–05 season was the 99th season in Atlético Madrid's history and their 68rd season in La Liga, the top division of Spanish football. It covers a period from 1 July 2004 to 30 June 2005. Despite Fernando Torres continuing to score more than a dozen goals per season, consolidating his status as Spain's top young striker, Atlético were only able to score 40 league goals. That rendered the successful defence of Luis Perea and Pablo Ibáñez vital just to keep the club in mid-table.
1Player left the club during the season.