1988–89 Turkish Cup

The 1988–89 Turkish Cup was the 27th edition of the annual tournament that determined the association football Süper Lig Turkish Cup (Türkiye Kupası) champion under the auspices of the Turkish Football Federation (Türkiye Futbol Federasyonu; TFF). Beşiktaş successfully contested Fenerbahçe 1–3 in the final. The results of the tournament also determined which clubs would be promoted or relegated.

Quarter-finals

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Semi-finals

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