The 1969–70 European Cup was the 15th season of the European Cup, a club football tournament organised by UEFA for the domestic league champions of its member associations. It was won by Feyenoord of the Netherlands, who beat Scottish club Celtic after extra time in the final at San Siro in Milan on 6 May 1970. It was the first time the title had been won by a club from the Netherlands, and sparked a period of Dutch dominance in the competition, as Ajax won the next three titles. For the first time in the European Cup, tiebreaker playoffs were abandoned in favour of the away goals rule; if both teams had scored the same number of away goals, one side was eliminated by the toss of a coin, something that was required in two of the matches (marked on the table below by "c/t"). Milan were the defending champions, but were eliminated by eventual champions Feyenoord in the second round.

Teams

Preliminary round

First leg

Second leg

Kjøbenhavns Boldklub won 5–0 on aggregate.

Bracket

First round

First leg

Second leg

Spartak Trnava won 6–2 on aggregate. Galatasaray won 5–2 on aggregate. Legia Warsaw won 10–1 on aggregate. Saint-Étienne won 3–2 on aggregate. Vorwärts Berlin won 3–1 on aggregate. Red Star Belgrade won 12–2 on aggregate. Milan won 8–0 on aggregate. Feyenoord won 16–2 on aggregate. Standard Liège won 4–1 on aggregate. Real Madrid won 14–1 on aggregate. Leeds United won 16–0 on aggregate. Ferencváros won 5–3 on aggregate. Celtic won 2–0 on aggregate. Benfica won 5–2 on aggregate. Dynamo Kyiv won 5–2 on aggregate. Fiorentina won 3–1 on aggregate.

Second round

First leg

Second leg

1–1 on aggregate; Galatasaray progressed on a coin toss. Legia Warsaw won 3–1 on aggregate. 4–4 on aggregate; Vorwärts Berlin won on away goals. Feyenoord won 2–1 on aggregate. Standard Liège won 4–2 on aggregate. Leeds United won 6–0 on aggregate. 3–3 on aggregate; Celtic progressed on a coin toss. Fiorentina won 2–1 on aggregate.

Quarter-finals

First leg

Second leg

Legia Warsaw won 3–1 on aggregate. Feyenoord won 2–1 on aggregate. Leeds United won 2–0 on aggregate. Celtic won 3–1 on aggregate.

Semi-finals

First leg

Second leg

Feyenoord won 2–0 on aggregate. Celtic won 3–1 on aggregate.

Final

Top scorers

The top scorers from the 1969–70 European Cup (excluding preliminary round) are as follows: