| Turkish Cup | |
| Year: | 2002–03 |
| Other Titles: | Türkiye Kupası |
| Country: | Turkey |
| Num Teams: | 48 |
| Champions: | Trabzonspor |
| Runner-Up: | Gençlerbirliği |
| Top Goal Scorer: | Ahmed Hassan Mehmet Yılmaz (8 goals each) |
| Prevseason: | 2001–02 |
| Nextseason: | 2003–04 |
The 2002–03 Turkish Cup was the 41st edition of the annual tournament that determined the association football Super League (Süper Lig) Turkish Cup (tr|Türkiye Kupası)[1] champion under the auspices of the Turkish Football Federation (tr|Türkiye Futbol Federasyonu; TFF). Trabzonspor successfully contested Gençlerbirliği 3–1 in the final. The results of the tournament also determined which clubs would be promoted or relegated.
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