| Season: | 1998–99 |
| League Topscorer: | Horst Siegl (18) |
| Matches: | 240 |
| Total Goals: | 625 |
| Average Attendance: | 6,033[2] |
| Nextseason: | 1999–2000 |
The 1998–99 Czech First League, known as the Gambrinus liga for sponsorship reasons, was the sixth season of top-tier football in the Czech Republic. The season started on 2 August 1998.[3]
Relegated to the 1998–99 Czech 2. Liga
Promoted from the 1997–98 Czech 2. Liga
| Rank | Player | Club | Goals | |
|---|---|---|---|---|
| 1 |  Horst Siegl | Sparta Prague | 18 | |
| 2 | Pavel Verbíř | Teplice | 13 | |
| 3 | Robert Vágner | Slavia Prague | 12 | |
| 4 | František Koubek | Hradec Králové | 11 | |
| Vratislav Lokvenc | Sparta Prague | |||
| Vítězslav Tuma | Drnovice | |||
| 7 | Luděk Zelenka | Viktoria Žižkov / Slavia Prague | 10 |