1965–66 Inter-Cities Fairs Cup
The eighth Inter-Cities Fairs Cup was played over the 1965–66 season. The competition was won by Barcelona over two legs in an all-Spanish final against Zaragoza. It was the sixth and final time that a Spanish side won the competition, and Barcelona's third title.
First round
First leg
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Second leg
1. FC Köln won 17–0 on aggregate.----
Porto won 1–0 on aggregate.
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Antwerp won 4–3 on aggregate.
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Wiener won 8–2 on aggregate.
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Chelsea won 4–1 on aggregate.
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RC Strasbourg 2–2 Milan on aggregate; [|play-off] needed.
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Fiorentina won 7–1 on aggregate.
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Brno won 2–1 on aggregate.
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Leeds United won 2–1 on aggregate.
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''Valencia 2–2 Hibernian on aggregate; play-off needed.''
Play-off
Milan 1–1 RC Strasbourg in play-off. Milan advanced on a coin toss.----
''Valencia won the play-off 3–0.''
Second round
First leg
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Second leg
Hannover 96 won 6–2 on aggregate.----
Steagul Roșu Brașov won 3–2 on aggregate.
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Zaragoza won 3–2 on aggregate.
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Leeds won 2–1 on aggregate.
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Milan 2–2 GD CUF on aggregate.
Milan won 1–0 in play-off.
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Spartak Brno won 4–2 on aggregate.
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Valencia won 8–2 on aggregate.
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Third round
First leg
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Second leg
Steagul Roșu 5–5 Espanyol on aggregate.----
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Chelsea 3–3 Milan on aggregate.
Milan 1–1 Chelsea in play-off. Chelsea advanced on a coin toss.
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Dunfermline won 2–0 on aggregate.
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''Leeds won 2–1 on aggregate.''
Quarter-finals
Second leg
''Leeds won 5–2 on aggregate.''Semi-finals
Second leg
Leeds – Zaragoza 2–2 on aggregate, replay is needed. Leeds won toss to play at homeZaragoza won 5–3 on aggregate.
Chelsea – Barcelona 2–2 on aggregate, replay is needed. Barcelona won toss to play at home
''Barcelona won 7–2 on aggregate.''