The knockout stage of the 2001–02 UEFA Champions League began on 2 April 2002 and ended on 15 May 2002 with the final at Hampden Park in Glasgow, Scotland.
[1] Teams qualified via the 2001–02 UEFA Champions League second group stage.
The knockout staged involved the eight teams which qualified as winners and runners-up of each of the four groups in the second group stage.
3–3 on aggregate; Bayer Leverkusen won on away goals.
The final was played on 15 May 2002 at Hampden Park in Glasgow, Scotland.