The 2003 Finnish Cup (Finnish: Suomen Cup) was the 49th season of the main annual association football cup competition in Finland.
It was organised as a single-elimination knock–out tournament and participation in the competition was voluntary.
A total of 338 teams registered for the competition.
The final was held at the Finnair Stadium, Helsinki on 1 November 2003 with HJK defeating AC Allianssi by 2–1, (after extra time), before an attendance of 3,682 spectators.
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