The Slovak Extraliga 2004–05 was the twelfth regular season of the Slovak Extraliga, the top level of professional ice hockey in Slovakia. During the 2004–05 NHL lockout several Slovak players returned to their homeland, including Pavol Demitra, Marián Hossa, Marián Gáborík (all in HK Dukla Trenčín), Miroslav Šatan and Ľubomír Višňovský (both in HC Slovan Bratislava), Michal Handzuš, Richard Zedník and Vladimír Országh (all in HKm Zvolen), Ladislav Nagy and Martin Štrbák (both in HC Košice), and Žigmund Pálffy (in HK 36 Skalica).
| Po. | Club | GP | W | OTW | T | OTL | L | GF | GA | PTS | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 54 | 31 | 5 | 4 | 1 | 13 | 185 | 128 | 107 | ||
| 2. | HC Slovan Bratislava | 54 | 34 | 0 | 5 | 2 | 13 | 184 | 115 | 107 | |
| 3. | HC Dukla Trenčín | 54 | 31 | 1 | 7 | 1 | 14 | 200 | 127 | 102 | |
| 4. | HC Košice | 54 | 29 | 1 | 6 | 2 | 16 | 156 | 124 | 95 | |
| 5. | HK Nitra | 54 | 26 | 1 | 7 | 2 | 18 | 152 | 146 | 87 | |
| 6. | MsHK Žilina | 54 | 23 | 3 | 4 | 0 | 24 | 148 | 138 | 79 | |
| 7. | HK Poprad | 54 | 19 | 2 | 11 | 1 | 21 | 133 | 134 | 72 | |
| 8. | MHk 32 Liptovský Mikuláš | 54 | 18 | 1 | 8 | 1 | 26 | 139 | 166 | 64 | |
| 9. | HK 36 Skalica | 54 | 11 | 0 | 6 | 2 | 35 | 129 | 205 | 39 | |
| 10. | HK Dubnica | 54 | 4 | 0 | 2 | 2 | 46 | 93 | 236 | 14 |
| Extraliga Last Team | Score | 1st. League Winner |
| HK Dubnica* | 4:2 | HC Topoľčany |
| 7:1, 2:4, 1:2, 3:0, 8:0, 7:1 |
Regular season
| Player | Club | GP | G | A | PTS | ||
|---|---|---|---|---|---|---|---|
| 1. |  Pavol Demitra | Trenčín | 54 | 28 | 54 | 82 | |
| 2. | Jaroslav Kmiť | Košice | 53 | 23 | 33 | 56 | |
| 3. | Richard Kapuš | Slovan | 52 | 17 | 37 | 54 | |
| 4. | Marián Gáborík | Trenčín | 29 | 25 | 27 | 52 | |
| 5. | Arne Kroták | Košice | 51 | 26 | 25 | 51 |
| Player | Club | GP | G | A | PTS | |
|---|---|---|---|---|---|---|
| 1. | Miroslav Šatan | Slovan | 18 | 15 | 7 | 22 |
| 2. | Zdeno Cíger | Slovan | 19 | 6 | 15 | 21 |
| 3. | Richard Zedník | Zvolen | 17 | 9 | 10 | 19 |
| 4. | Marián Gáborík | Trenčín | 12 | 8 | 9 | 17 |
| Pavol Demitra | Trenčín | 12 | 4 | 13 | 17 |
| Player | Post | Club | |
| Karol Križan | G | Zvolen | |
| Ľubomír Višňovský | D | Slovan | |
| René Vydarený | D | Slovan | |
| Miroslav Šatan | LW | Slovan | |
| Michal Handzuš | C | Zvolen | |
| Pavol Demitra | RW | Trenčín |
| Coach | Club | |
 Miloš Říha | Slovan |