| Season: | 1943 |
| Winners: | Galatasaray (2nd Title) |
| Nextseason: | 1944 |
The 1943 Istanbul Football Cup season was the second season of the cup. Galatasaray won the cup for the second time. The tournament was single-elimination.
October 1, 1943|}Goals for Galatasaray: Gündüz Kılıç(2), Cemil Gürgen ErlertürkGoals for Beşiktaş: Kemal Gülçelik