1999–2000 Copa del Rey

The 1999–2000 Copa del Rey was the 98th staging of the Copa del Rey.

The competition started on 1 September 1999 and concluded on 27 May 2000 with the Final, held at the Estadio Mestalla in Valencia.

Preliminary round

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First round

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Second round

 * colspan=5 style="font-size:smaller" | Bye: Real Madrid CF
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Round of 16

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Quarter-finals

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Semi-finals

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Note: Barcelona failed to play the second leg due to a fixture clash with UEFA international matches, which left Barcelona with only seven first-team players. The competition rules at the time for the Copa del Rey allowed sides a maximum of three youth players per match, leaving Barcelona with a squad of ten players for the return leg against Atlético de Madrid. The ten Barcelona players refused to take to the field as a protest against the Spanish FA (RFEF), thus forfeiting the match.