The 2004–05 Euroleague was the fifth season of the professional basketball competition for elite clubs throughout Europe, organised by Euroleague Basketball Company, and it was the 48th season of the premier competition for European men's clubs overall.

The final of the competition was held in Olimpiisky Arena, Moscow, Russia, with the defending champions, Maccabi Tel Aviv, defeating Tau Cerámica by a score of 90-78.

The table below shows the default access list.

The complete list of tiebreakers was provided in the lead-in to the Regular Season results.

If one or more clubs were level on won-lost record, tiebreakers were applied in the following order: