The 1998–99 Tunisian Ligue Professionnelle 1 season was the 44th season of top-tier football in Tunisia.
Results
Group A
Group A table
Group A result table
Group A leaders
Group B
Group B table
Group B result table
Group B leaders
Championship Playoffs
League table Group winners (Espérance de Tunis and Club Africain) obtained 2 bonus points each and group runners-up (CA Bizertin and CS Sfaxien) obtained 1 bonus point each.
Result table
Leaders
Relegation Playoffs
Relegation playoffs table Teams that finished the regular season in the 5th place of each group (CO Transports and CS Hammam-Lif) obtained 2 bonus points each and those that finished in the 6th place of each group (Olympique Béja and ES Beni-Khalled) obtained 1 bonus point each.
Relegation playoffs result table
References 1998–99 Ligue 1 on RSSSF.com