The 2002–03 Slovak Cup was the 34th season of Slovakia's annual knock-out cup competition and the tenth since the independence of Slovakia. It began on 10 September 2002 with Round 1 and ended on 8 May 2003 with the Final. The winners of the competition earned a place in the qualifying round of the UEFA Cup. Koba Senec were the defending champions.
First round
The match DAC Dunajská Streda – Matador Púchov was played on 10 September 2002 and the thirteen games were played on 11 September 2002 .
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Second round
The seven games were played on 23 September 2002 and the match ŽP Šport Podbrezová – MFK Myjava/Tura Luka was played on 10 October 2002.
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Quarter-finals
The games were played on 22 October 2002.
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Semi-finals
The first legs were played on 19 March 2003. The second legs were played on 15 and 16 April 2003.