The 1988–89 season of the Moroccan Throne Cup was the 33rd edition of the competition.
Wydad Athletic Club won the competition, beating Olympique de Khouribga 2–0 in the final, played at the Prince Moulay Abdellah Stadium in Rabat. Wydad Athletic Club won the cup for the 5th time in their history.
Competition Last 16 Team 1 Team 2 Result Maghreb de Fès Olympique de Casablanca 0–1Match replayed after 0-0 draw Renaissance de Settat Kamal Marrakech ?–?Score unknown, but Renaissance de Settat won the match Difaâ Hassani El Jadidi Ittihad Tanger 2–1 Wydad de Fès Najah Souss 2–0 Hilal de Nador FAR de Rabat 0–1 Fath Union Sport Kawkab Marrakech 2–3 Union de Sidi Kacem Olympique de Khouribga 1–2 Wydad Athletic Club CODM Meknès 2–1
Quarter-finals Team 1 Team 2 Result Difaâ Hassani El Jadidi FAR de Rabat ?–?Score unknown, but FAR won this match Wydad Athletic Club Kawkab Marrakech 1–0 Olympique de Khouribga Olympique de Casablanca 1–0 Kamal Marrakech Wydad de Fès 1–13–4 (pens)
Semi-finals Team 1 Team 2 Result Wydad Athletic Club FAR de Rabat 3–2 Wydad de Fès Olympique de Khouribga 0–1
Final The final took place between the two winning semi-finalists, Wydad Athletic Club and Olympique de Khouribga, on 6 March 1989 at the Prince Moulay Abdellah Stadium in Rabat.
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