The qualifying rounds for the 2001–02 UEFA Champions League began on 11 July 2001. In total, there were three qualifying rounds which provided 16 clubs to join the group stage.
† Winners of the previous qualifying round whose identity was not known at the time of the draw. Teams in italics defeated a team with a higher coefficient in the previous qualifying round, thus effectively taking the coefficient of their defeated opponent in the draw for this round.
‡ Hungarian champions Ferencváros were treated as unseeded club by default for second qualifying round as the 2000–01 Nemzeti Bajnokság I was not finished by the date of the draw (22 June 2001).[1]
^UEFA awarded Haka a 3–0 win due to Maccabi Haifa fielding suspended player Walid Badir in the second leg. The original match had ended in a 4–0 win for Maccabi Haifa.[2]
† Winners of the previous qualifying round whose identity was not known at the time of the draw. Teams in italics defeated a team with a higher coefficient in the previous qualifying round, thus effectively taking the coefficient of their defeated opponent in the draw for this round.
^UEFA decided to replay the second leg (which originally ended in 1–0 win to Lokomotiv) after accepting Tirol's protest on refereeing mistake, which resulted in Lokomotiv player not being shown a red card after receiving a second yellow card.[3]
^The second leg originally ended 4–0 to Maccabi Haifa but they were later ruled to have forfeited the match after fielding suspended player Walid Badir; Haka were therefore awarded the second leg 3–0.
^The Tirol Innsbruck v Lokomotiv Moscow second leg match, which Lokomotiv Moscow originally won 1–0, was annulled and replayed after UEFA admitted a referee mistake as Lokomotiv player was not expelled after receiving two yellow cards.[3]
Note: In 1991–92, the competition was still known as the European Cup, but is included as it was the first to use a group stage format. In that season and 1992–93, there was no knockout phase between the group stage and final.
Sheriff Tiraspol
Torpedo Kutaisi
Levadia Maardu
Skonto
Željezničar
Slavia Mozyr
Haka
Kaunas
Vllaznia
Shamkir
Maccabi Haifa
Lugano
Red Star Belgrade
Hajduk Split
Rangers
Inter Bratislava
Copenhagen
Brann
Wisła Kraków
Halmstads BK
Borussia Dortmund
Tirol Innsbruck
Liverpool
Mallorca
Lazio
Panathinaikos
Lille