The 1983–84 European Cup was the 19th edition of the European Cup, IIHF's premier European club ice hockey tournament. The season started on October 5, 1983, and finished on August 12, 1984.
The tournament was won by CSKA Moscow, who won the final group.
| width=22% | Team #1 | width=11% | Score | width=22% | Team #2 |
|---|---|---|---|---|---|
SC Saint-Gervais  | 6–4, 8–4 |  Újpesti Dózsa | |||
| Rødovre SIK | 12–3, 9–2 | Dundee Rockets | |||
Furuset  | 5–8, 5–4 |  Flyers Heerenveen | |||
| EHC Biel | 4–3, 9–7 | HK Olimpija Ljubljana |
VEU Feldkirch, 
HC Bolzano, Dynamo Berlin, 
Djurgårdens IF : bye
| width=22% | Team #1 | width=11% | Score | width=22% | Team #2 |
|---|---|---|---|---|---|
| SC Saint-Gervais | 4–7, 2–2 | HC Bolzano | |||
| 2–12, 2–9 | Dynamo Berlin | ||||
| Flyers Heerenveen | 0–13, 2–15 | Djurgårdens IF | |||
| VEU Feldkirch | 9–5, 2–3 | EHC Biel |
HIFK, EV Landshut, Dukla Jihlava, CSKA Moscow : bye
| width=22% | Team #1 | width=11% | Score | width=22% | Team #2 |
|---|---|---|---|---|---|
| HC Bolzano | 1–12, 2–11 | CSKA Moscow | |||
| Dynamo Berlin | 7–3, 2–4 | HIFK | |||
| Djurgårdens IF | 5–1, w/o | EV Landshut | |||
| VEU Feldkirch | 6–7, 3–7 | Dukla Jihlava |
(Urtijëi, Italy)
| width=22% | Team #1 | width=11% | Score | width=22% | Team #2 |
|---|---|---|---|---|---|
| 7–2 | Dynamo Berlin | ||||
| 5–0 | Djurgårdens IF | ||||
| 4–3 | Dynamo Berlin | ||||
| 3–1 | Djurgårdens IF | ||||
| 5–3 | Djurgårdens IF | ||||
| 4–3 | Dukla Jihlava |
| Rank | Team | Points | |
| 1 | CSKA Moscow | 6 | |
|---|---|---|---|
| 2 | Dukla Jihlava | 4 | |
| 3 | Dynamo Berlin | 2 | |
| 4 | Djurgårdens IF | 0 |