The 2004–05 OB I bajnokság season was the 68th season of the OB I bajnokság, the top level of ice hockey in Hungary. Six teams participated in the league, and Alba Volan Szekesfehervar won the championship.
| Club | GP | W | OTW | OTL | L | Goals | Pts | ||
|---|---|---|---|---|---|---|---|---|---|
| 1. | 10 | 9 | 0 | 1 | 0 | 65:10 | 28 | ||
| 2. | 10 | 7 | 0 | 1 | 2 | 84:20 | 22 | ||
| 3. | 10 | 5 | 2 | 1 | 2 | 42:23 | 20 | ||
| 4. | 10 | 4 | 1 | 0 | 5 | 36:33 | 14 | ||
| 5. | 10 | 1 | 0 | 0 | 9 | 15:95 | 3 | ||
| 6. | 10 | 1 | 0 | 0 | 9 | 16:77 | 3 |
| Club | GP | W | OTW | OTL | L | Goals | Pts | ||
|---|---|---|---|---|---|---|---|---|---|
| 1. | 12 | 10 | 0 | 1 | 1 | 72:19 | 31 | ||
| 2. | 12 | 9 | 1 | 0 | 2 | 70:29 | 29 | ||
| 3. | 12 | 3 | 0 | 0 | 9 | 35:69 | 9 | ||
| 4. | 12 | 1 | 0 | 0 | 11 | 24:84 | 3 |
| Club | GP | W | OTW | OTL | L | Goals | Pts | ||
|---|---|---|---|---|---|---|---|---|---|
| 1. | 12 | 5 | 2 | 3 | 2 | 39:24 | 22 | ||
| 2. | 12 | 5 | 2 | 2 | 3 | 44:32 | 21 | ||
| 3. | 12 | 3 | 4 | 2 | 3 | 37:36 | 19 | ||
| 4. | 12 | 2 | 1 | 2 | 7 | 20:48 | 10 |