| Tourney Name: | European Cup |
| Year: | 1966–67 |
| Size: | 275px |
| Num Teams: | 33 (32 competed) |
| Associations: | 32 |
| Champion Other: | Celtic |
| Count: | 1 |
| Second Other: | Inter Milan |
| Matches: | 65 |
| Goals: | 212 |
| Attendance: | 1786150 |
| Top Scorer: | Paul Van Himst (Anderlecht) 6 goals |
| Prevseason: | 1965–66 |
| Nextseason: | 1967–68 |
The 1966–67 European Cup was the 12th season of the European Cup, UEFA's premier club football tournament. The competition was won by Celtic for the first time, when they beat Inter Milan 2–1 in the final at the Estádio Nacional, Lisbon, on 25 May 1967,[1] making them the first British team, as well as the only Scottish team (as of 2024) to win the coveted trophy. Celtic also became just the second team to win the tournament on their debut appearance after Inter Milan in 1963–64 edition.
Real Madrid were the defending champions, but were eliminated by eventual finalists Inter Milan in the quarter-finals.
Soviet Union entered its champion for the first time this season.
A total of 33 teams participated in the competition.
Spain was represented by two clubs, with Real Madrid qualifying as title holders and Atlético Madrid as Spanish champions.
Real Madrid made their twelfth consecutive appearance in the competition, while CSKA Red Flag participated for the eighth time. Anderlecht and Dukla Prague appeared in their seventh tournament.
Admira-NÖ Energie Wien, Omonia, Vålerenga, Waterford, Celtic, Torpedo Moscow, 1860 Munich, and Vojvodina made their debut in the competition.
Atlético Madrid returned to the tournament for the first time since 1958–59 edition, while Petrolul Ploiești returned to the competition after seven years. Ajax, Beşiktaş and Olympiacos made their first appearance for six years.
All participants were their respective associations champions, except for title holders Real Madrid.
Due to the number of participating teams and to allow title holders to receive a bye to the next round, a second round was introduced in the competition.
With title holders Real Madrid placed in the second round, a draw took place to select four teams from the remaining participants to play preliminary round in September.
|}----
Vorwärts Berlin won 12–1 on aggregate.----CSKA Red Flag won 6–1 on aggregate.
|}
----------------------------------------------------
Atlético Madrid won 5–1 on aggregate.----Vojvodina won 1–0 on aggregate.----Nantes won 8–4 on aggregate.----Celtic won 5–0 on aggregate.----Ajax won 4–1 on aggregate.----3–3 on aggregate.
Play-offLiverpool won 2–0 in a play-off match.----Dukla Prague won 6–0 on aggregate.----Anderlecht won 12–1 on aggregate.----Inter Milan won 1–0 on aggregate.----Vasas won 7–0 on aggregate.----1860 Munich won 10–1 on aggregate.----Linfield won 9–4 on aggregate.----CSKA Red Flag won 3–2 on aggregate.----3–3 on aggregate.
Górnik Zabrze won 3–1 in a play-off match.
|}
--------
See main article: Ajax 5–1 Liverpool (1966). --------------------
3–3 on aggregate.
Play-offVojvodina won 3–2 in a play-off match.----Celtic won 6–2 on aggregate.----Ajax won 7–3 on aggregate.----Dukla Prague won 6–2 on aggregate.----Inter Milan won 4–1 on aggregate.----Real Madrid won 3–2 on aggregate.----Linfield won 5–2 on aggregate.----CSKA Red Flag won 4–3 on aggregate.
|}
------------
Celtic won 2–1 on aggregate.----Dukla Prague won 3–2 on aggregate.----Inter Milan won 3–0 on aggregate.----CSKA Red Flag won 3–2 on aggregate.
|}
----
Celtic won 3–1 on aggregate.----2–2 on aggregate.
Play-off
See main article: 1967 European Cup final.
The top scorers from the 1966–67 European Cup (excluding preliminary round) were as follows:
