| Competition: | Idea Ekstraklasa |
| Season: | 2004–05 |
| Winners: | Wisła Kraków 11th Ekstraklasa title 10th Polish title |
| Relegated: | GKS Katowice |
| League Topscorer: | Tomasz Frankowski (25 goals) |
| Matches: | 186 |
| Total Goals: | 498 |
| Average Attendance: | 5,230 4.8%[1] |
| Prevseason: | 2003–04 |
| Nextseason: | 2005–06 |
The 2004–05 Ekstraklasa is the 79th season of the Polish Football Championship and the 71st season of the Ekstraklasa, the top Polish professional league for association football clubs, since its establishment in 1927.
14 teams competed in the 2004-05 season. Wisła Kraków won the championship.
The matches were played on 16 and 19 June 2005.
