| Competition: | Liga |
| Season: | 1989–90 |
| Winners: | Lech Poznań (3rd title) |
| League Topscorer: | Andrzej Juskowiak (18 goals) |
| Matches: | 240 |
| Total Goals: | 484 |
| Average Attendance: | 7,404 11.9%[1] |
| Prevseason: | 1988–89 |
| Nextseason: | 1990–91 |
Statistics of Ekstraklasa for the 1989–90 season.
It was contested by 16 teams, and Lech Poznań won the championship.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 |  Andrzej Juskowiak | Lech Poznań | 18 |
| 2 | Ryszard Cyroń | Górnik Zabrze | 15 |
| 3 | Krzysztof Warzycha | Ruch Chorzów | 12 |
| Janusz Kudyba | Zagłębie Lubin | 12 | |
| 5 | Kazimierz Moskal | Wisla Kraków | 11 |
| 6 | Maciej Śliwowski | Stal Mielec | 10 |
| 7 | Jacek Ziober | ŁKS Łódź | 9 |
| Jacek Bayer | Widzew Łódź | 9 | |
| Piotr Nowak | Zawisza Bydgoszcz | 9 | |
| Jerzy Kaziów | Olimpia Poznań | 9 |