1970–71 European Cup Winners' Cup

The 1970–71 season of the European Cup Winners' Cup football club tournament was won by Chelsea in a replay against Real Madrid. Defending champions Manchester City were eliminated by Chelsea in the semi-finals, only the second ever tie in the competition between two clubs from the same country. These two sides would later compete in the 2021 UEFA Champions League final, with Chelsea winning 1-0. The finals were played in Karaiskakis Stadium in Piraeus, Greece.

Preliminary round

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First round

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Second leg
CSKA September Flag won 11–1 on aggregate.

Steaua București won 4–3 on aggregate.

 Benfica won 9–2 on aggregate.

1–1 on aggregate; Vorwärts Berlin won on away goals.

 Cardiff City won 8-0 on aggregate.

Second round

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Second leg
Chelsea won 2–0 on aggregate.

PSV Eindhoven won 7–0 on aggregate.

''2–2 on aggregate. Vorwärts Berlin won 5–3 on penalties.''

Quarter-finals



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Semi-finals

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Second leg
Chelsea won 2–0 on aggregate.

Real Madrid won 2–1 on aggregate.