| Competition: | Liga |
| Season: | 1965–66 |
| Winners: | Górnik Zabrze (7th title) |
| Relegated: | Odra Opole Gwardia Warsaw |
| League Topscorer: | Włodzimierz Lubański (23 goals) |
| Prevseason: | 1964–65 |
| Nextseason: | 1966–67 |
Statistics of Ekstraklasa for the 1965–66 season.
14 teams competed in the 1965-66 season with Górnik Zabrze winning the championship.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 |  Włodzimierz Lubański | Górnik Zabrze | 23 |
| 2 | Ginter Piecyk | Zagłębie Sosnowiec | 15 |
| Ernest Pol | Górnik Zabrze | 15 | |
| 4 | Norbert Pogrzeba | Polonia Bytom | 14 |
| Jerzy Wilim | Szombierki Bytom | 14 | |
| 6 | Józef Gałeczka | Zagłębie Sosnowiec | 13 |
| 7 | Eugeniusz Faber | Ruch Chorzów | 12 |
| Władysław Gzel | Zagłębie Sosnowiec | 12 | |
| 9 | Edward Herman | Ruch Chorzów | 11 |
| Eugeniusz Lerch | Ruch Chorzów | 11 |