The 1955–56 Czechoslovak Extraliga season was the 13th season of the Czechoslovak Extraliga, the top level of ice hockey in Czechoslovakia. 15 teams participated in the league, and Ruda Hvezda Brno won the championship.
| Pl. | Team | GP | W | T | L | GF–GA | Pts | |
|---|---|---|---|---|---|---|---|---|
| 1. | Rudá Hvězda Brno | 12 | 11 | 0 | 1 | 80:27 | 22 | |
| 2. | 12 | 9 | 0 | 3 | 44:36 | 18 | ||
| 3. | Tankista Prag | 12 | 7 | 1 | 4 | 43:30 | 15 | |
| 4. | Dynamo Pardubice | 12 | 5 | 2 | 5 | 53:51 | 12 | |
| 5. | Spartak ZJŠ Brno | 12 | 4 | 0 | 8 | 36:51 | 8 | |
| 6. | Spartak Královo Pole | 12 | 3 | 1 | 8 | 32:46 | 7 | |
| 7. | ÚNV Slovan Bratislava | 12 | 1 | 0 | 11 | 29:76 | 2 |
| Pl. | Team | GP | W | T | L | GF–GA | Pts | |
|---|---|---|---|---|---|---|---|---|
| 1. | Baník Chomutov | 14 | 12 | 1 | 1 | 84:33 | 25 | |
| 2. | 14 | 11 | 1 | 2 | 91:43 | 23 | ||
| 3. | Spartak LZ Plzeň | 14 | 8 | 0 | 6 | 61:59 | 16 | |
| 4. | ÚDA Praha | 14 | 7 | 0 | 7 | 62:65 | 14 | |
| 5. | Baník Kladno | 14 | 6 | 0 | 8 | 59:59 | 12 | |
| 6. | Motorlet Prag | 14 | 5 | 0 | 9 | 68:78 | 10 | |
| 7. | Slavoj České Budějovice | 14 | 5 | 0 | 9 | 45:76 | 10 | |
| 8. | Dynamo Karlovy Vary | 14 | 1 | 0 | 13 | 49:106 | 2 |
| Pl. | Team | GP | W | T | L | GF–GA | Pts | |
|---|---|---|---|---|---|---|---|---|
| 1. | Rudá hvězda Brno | 6 | 5 | 0 | 1 | 29:12 | 10 | |
| 2. | 6 | 3 | 1 | 2 | 22:21 | 7 | ||
| 3. | Spartak Praha Sokolovo | 6 | 3 | 0 | 3 | 19:24 | 6 | |
| 4. | Baník Vítkovice | 6 | 0 | 1 | 5 | 14:27 | 1 |