The eighth Inter-Cities Fairs Cup was played over the 1965–66 season. The competition was won by FC Barcelona over two legs in an all-Spanish final against Real Zaragoza. It was the sixth and final time that a Spanish side won the competition, and Barcelona's third title.
Contents
Second leg
Chelsea won 4–1 on aggregate.
RC Strasbourg 2–2 Milan on aggregate.
Milan 1–1 RC Strasbourg in play-off. Milan advanced on a coin toss.
Fiorentina won 7–1 on aggregate.
Leeds United won 2–1 on aggregate.
Second leg
Leeds won 2–1 on aggregate.
Milan 2–2 GD CUF on aggregate.
Milan won 1–0 in play-off.
Spartak Brno won 4–2 on aggregate.
Valencia won 8–2 on aggregate.
Second leg
Chelsea 3–3 Milan on aggregate.
Milan 1–1 Chelsea in play-off. Chelsea advanced on a coin toss.
Leeds won 2–1 on aggregate.
Second leg
Leeds won 5–2 on aggregate.
Second leg
Leeds – Zaragoza 2–2 on aggregate, replay is needed. Leeds won toss to play at home
Zaragoza won 5–3 on aggregate.