The 2001–02 Euroleague was the second season of the professional basketball competition for elite clubs throughout Europe, organised by Euroleague Basketball Company, and it was the 45th season of the premier competition for European men's clubs overall.

Given that the previous season there were two main competitions, the 2000–01 FIBA Suproleague and the 2000–01 Euroleague, thus two European champions (Maccabi Tel Aviv and Kinder Bologna), it was decided that an opening tournament would be played to determine the unofficial champion.

The Euroleague opening tournament was hosted in Ljubljana by Union Olimpija and was won by Cibona VIP, the only guest of the tournament, beating Maccabi Tel Aviv 78–67 in the final.

The complete list of tiebreakers is 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: