# 1990–91 Turkish Cup

The 1990–91 Turkish Cup was the 29h edition of the tournament that determined the association football Süper Lig Turkish Cup (Turkish: Türkiye Kupası) champion under the auspices of the Turkish Football Federation (Turkish: Türkiye Futbol Federasyonu; TFF). champion under the auspices of the Turkish Football Federation (Turkish: Türkiye Futbol Federasyonu; TFF). Trabzonspor successfully contested Bursaspor on both legs of the finals. The results of the tournament also determined which clubs would be promoted or relegated.

## First round

| Team 1 | Score | Team 2 |
| Aksarayspor | 5–1 | Osmaniyespor |
| Bucaspor | 0–2 | Altınordu |
| Şekerspor | 3–2 | Karabükspor |
| Feriköy | 2–0 | Vefa |
| Alanyaspor | 0–2 | Muğlaspor |
| Altay | 7–1 | Kütahyaspor |
| Anadolu Hisarı İdman Yurdu | 1–2 | Beylerbeyi |
| Antalyaspor | 1–3 | Sökespor |
| Bandırmaspor | 1–0 | Kartalspor |
| Bayburtspor | 0–0 (7–6 p) | Bafraspor |
| Bingölspor | 0–0 (8–7 p) | Mardinspor |
| Bozüyükspor | 2–5 | Mustafakemalpaşaspor |
| Çeşmespor | 0–3 | Turgutluspor |
| Çorumspor | 4–1 | Sivasspor |
| Dardanelspor | 3–1 | Manisaspor |
| Denizlispor | 3–0 | Kuşadasıspor |
| Düzcespor | 3–1 | Erdemir Ereğlispor |
| Eyüpspor | 2–1 | Sakaryaspor |
| Karagümrük | 2–1 | Kocaelispor |
| Gaziosmanpaşaspor | 2–0 | Mudurnuspor |
| Giresunspor | 0–1 | Çaykur Rizespor |
| Gölcükspor | 2–0 | Tavşanlı Linyitspor |
| Gönenspor | 3–0 | Ayvalıkgücü |
| Görelespor | 1–0 | TEK 12 Martspor |
| Izmirspor | 2–0 | Yeni Salihlispor |
| Kasımpaşa | 0–1 | Beykozspor |
| Kayserispor | 0–2 | Adana Polisgücü |
| Keçiörengücü | 3–1 | Eskişehirspor |
| Malatyaspor | 3–1 | Erzurumspor |
| Mersin İdman Yurdu | 8–2 | Kahramanmaraşspor |
| Niğdespor | 2–1 | Hatayspor |
| Samsunspor | 5–0 | Orduspor |
| Sarayköyspor | 0–0 (6–7 p) | Nazillispor |
| Siirtspor | 2–1 | Elazığspor |
| Silivrispor | 3–1 | Lüleburgazspor |
| Silvanspor | 1–0 | Muşspor |
| Torbalıspor | 3–1 | Marmarisspor |
| PTT | 0–1 | Polatlıspor |
| Ankara Demirspor | 1–1 (2–4 p) | Amasyaspor |

## Second round

| Team 1 | Score | Team 2 |
| Petrol Ofisi | 3–1 | Şekerspor |
| Bayburtspor | 5–0 | Görelespor |
| Bingölspor | 3–0 (aet) | Silvanspor |
| Diyarbakırspor | 3–0 | Siirtspor |
| Malatyaspor | 5–1 | Vanspor |
| Ünyespor | 2–1 | Çaykur Rizespor |
| Çorumspor | 2–1 | Amasyaspor |
| Düzcespor | 2–0 | Beylerbeyi |
| Nevşehirspor | 1–0 | Mersin İdman Yurdu |
| Niğdespor | 2–0 | Adana Demirspor |
| Samsunspor | 4–0 | Akçaabat Sebatspor |
| Altınordu | 0–1 | İzmirspor |
| Bandırmaspor | 3–1 (aet) | Gönenspor |
| Beykozspor | 2–0 | İnegölspor |
| Dardanelspor | 2–1 | Turgutluspor |
| Denizlispor | 3–2 | Sökespor |
| Eyüpspor | 3–2 | Karagümrük |
| Gölcükspor | 3–0 | Mustafakemalpaşaspor |
| Keçiörengücü | 6–2 | Polatlıspor |
| Muğlaspor | 1–2 (aet) | Yeni Afyonspor |
| Silivrispor | 3–0 | Feriköy |
| Torbalıspor | 4–0 | Nazillispor |
| Yalovaspor | 1–0 | Gaziosmanpaşaspor |
| Göztepe | 0–1 (aet) | Altay |

## Third round

| Team 1 | Score | Team 2 |
| Bayburtspor | 3–0 | Bingölspor |
| Diyarbakırspor | 4–2 | Malatyaspor |
| Ünyespor | 1–3 (aet) | Samsunspor |
| Düzcespor | 4–1 | Çorumspor |
| Nevşehirspor | 1–0 | Niğdespor |
| Petrol Ofisi | 1–4 (aet) | Keçiörengücü |
| Beykozspor | 1–0 | Bandırmaspor |
| Denizlispor | 4–0 | Yeni Afyonspor |
| Eyüpspor | 1–1 (4–5 p) | Yalovaspor |
| Gölcükspor | 1–0 | Silivrispor |
| Izmirspor | 1–5 | Altay |
| Torbalıspor | 3–0 | Dardanelspor |

## Fourth round

| Team 1 | Score | Team 2 |
| Altay | 2–2 (4–3 p) | Denizlispor |
| Bayburtspor | 2–2 (5–6 p) | Düzcespor |
| Gölcükspor | 4–1 | Torbalıspor |
| Keçiörengücü | 1–2 | Samsunspor |
| Nevşehirspor | 2–1 | Diyarbakırspor |
| Yalovaspor | 3–1 | Beykozspor |

## Fifth round

| Team 1 | Score | Team 2 |
| Adana Polisgücü | 0–1 | Karşıyaka |
| Altay | 4–1 | Adanaspor |
| Ankaragücü | 2–2 (4–1 p) | Boluspor |
| Bursaspor | 1–0 | Gölcükspor |
| Düzcespor | 0–1 | Zeytinburnuspor |
| Gaziantepspor | 2–0 | Aksarayspor |
| Nevşehirspor | 0–1 | Konyaspor |
| Samsunspor | 2–1 | Yalovaspor |

## Sixth round

| Team 1 | Score | Team 2 |
| Gençlerbirliği | 2–5 | Bakırköyspor |
| Sarıyer | 3–0 | Karşıyaka |
| Ankaragücü | 2–0 | Altay |
| Fenerbahçe | 2–1 | Gaziantepspor |
| Konyaspor | 0–1 | Galatasaray |
| Samsunspor | 0–1 | Beşiktaş |
| Trabzonspor | 5–3 | Bursaspor |
| Zeytinburnuspor | 2–4 | Aydınspor |

## Quarter-finals

| Team 1 | Score | Team 2 |
| Trabzonspor | 2–1 | Bakırköyspor |
| Ankaragücü | 4–0 | Aydınspor |
| Fenerbahçe | 2–2 (4–3 p) | Sarıyer |
| Beşiktaş | 2–2 (4–5 p) | Galatasaray |

## Semi-finals
### Summary table

| Team 1 | Score | Team 2 |
| Fenerbahçe | 1–3 | Ankaragücü |
| Galatasaray | 2–1 | Trabzonspor |