2003–04 Copa del Rey
The 2003–04 Copa del Rey was the 102nd staging of the Copa del Rey.
The competition started on 24 August 2003 and concluded on 17 March 2004 with the Final, held at the Estadi Olímpic Lluís Companys in Barcelona, in which Real Zaragoza lifted the trophy with a 3–2 victory over Real Madrid. The final match was played six days after the 2004 Madrid train bombings and three days after the 2004 Spanish general elections.
First round
First leg:Second leg:
Round of 64
Round of 32
Knock-out rounds
Round of 16
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Quarter-finals
First leg
Second leg
Semi-finals
First leg
Second leg
Final
| Copa del Rey 2003–04 winners |
| Zaragoza 6th title |