1989–90 FC Basel season
| 1989–90 season | |
|---|---|
| Chairman | Charles Röthlisberger |
| Manager | Urs Siegenthaler (from November 1989) Coach: Ernst August Künnecke |
| Ground | St. Jakob Stadium, Basel |
| Nationalliga B | Qualifying Phase West 5th |
| Nationalliga B | Promotion Phase 3rd |
| Swiss Cup | Quarterfinal |
| Top goalscorer | League: Erni Maissen (16) All: Erni Maissen (18) |
| Highest home attendance | 22,000 on 16 April 1990 vs Zürich |
| Lowest home attendance | 1,900 on 4 November 1989 vs La Chaux-de-Fonds |
| Average home league attendance | 6,045 |
The Fussball Club Basel 1893 1989–90 season was their 96th season since the club's foundation. Charles Röthlisberger was the club's chairman for the second consecutive year. FC Basel played their home games in the St. Jakob Stadium. Following their relegation in the 1987–88 season this was their second season in the second tier of Swiss football.