The 1965–66 European Cup was the first edition of the European Cup, IIHF's premier European club ice hockey tournament. The season started on October 23, 1965, and finished on March 18, 1966, at Brno, Czechoslovakia.
The tournament was won by ZKL Brno, who beat EV Füssen in the final
| width=20% | Team #1 | width=13% | Score | width=20% | Team #2 |
|---|---|---|---|---|---|
SG Cortina  | 7-2, 3-1, 3-3, 4-3 |  HC Chamonix | |||
Újpesti Dózsa  | 8-3, 8-0, 6-4, 8-4 | HK CSKA Sofia | |||
EC KAC  | 10-3, 7-4, 3-2, 4-3 | SC Bern | |||
GKS Katowice  | 10-2, 4-1, 2-2, 2-4 | HK Jesenice | |||
Vålerenga  | 10-1, 19-1, 9-1, 6-0 | KSF København | |||
Karhut Pori  | w/o |  Västra Frölunda |
| width=20% | Team #1 | width=13% | Score | width=20% | Team #2 |
|---|---|---|---|---|---|
| GKS Katowice | 3-3, 3-3, 0-8, 3-:12 | ZKL Brno | |||
| EV Füssen | 5-0, 9-1, 1-2, 1-1 | ||||
| Újpesti Dózsa | 2-6, 3-4, 1-5, 0-9 | EC KAC | |||
| Vålerenga | 8-2, 2-1, 1-3, 4-4 |
| width=20% | Team #1 | width=13% | Score | width=20% | Team #2 |
|---|---|---|---|---|---|
| EC KAC | 3-4, 2-7, 3-4, 3-11 | ZKL Brno | |||
| Vålerenga | 3-3, 3-6, 6-5, 1-7 | EV Füssen |
| width=20% | Team #1 | width=13% | Score | width=20% | Team #2 |
|---|---|---|---|---|---|
| 4-6, 5-7, 2-6, 1-6 | ZKL Brno |