The 2008–09 Danish Cup was the 55th season of only Danish football cup competition. It was the first time since 2004 that the cup had a sponsor name: the daily newspaper Ekstra Bladet has signed a 3-year contract with the Danish Football Association (DBU), making the official name Ekstra Bladet Cup 2008–09. The competition started in August 2008 with the First Round and concluded on 21 May 2009, with the Final, held at Parken Stadium.

First round

In this round entered 96 teams. These include 55 teams from lower divisions, who have qualified through preliminary cups held by the regional associations, 25 teams from 2007–08 Second Divisions and all 16 teams from First Division. The draw for the First Round was held at Ekstra Bladet's premises at The City Hall Square in Copenhagen. The matches were played around 13 August 2008.

West group

The west group consisted of 46 teams. These were split into 5 minor groups.

North group

Central group

South group

Funen group

East/south group

East group

The east group consisted of 40 teams.

Second round

The winners from the First Round progressed to the Second Round. Eight additional teams, placed fifth to twelfth in the 2007–08 Superliga, contested in this round. The draw for the Second Round was held at Ekstra Bladet's premises at The City Hall Square in Copenhagen. The matches were played on 23 and 24 August 2008.

West group

The west group consisted of 28 teams.

East group

The east group consisted of 28 teams.

Third round

The winners from the Second Round progressed to the Third Round. Four additional teams, placed first to fourth in the 2007–08 Superliga, contested in this round. The draw for this round was held at Ekstra Bladet's premises at The City Hall Square in Copenhagen. The matches were played between 26 and 29 September 2008.

Fourth round

The winners from the Third Round progressed to the Fourth Round. The draw for this was held at Ekstra Bladet's premises at The City Hall Square in Copenhagen. The matches were played around 29 October 2008.

Quarter-finals

The draw for the Fifth Round was held at Ekstra Bladet's premises at The City Hall Square in Copenhagen. The matches were played on 12 November 2008.

Semi-finals

The semifinals will be played on home and away basis. The first legs were played on 15 and 16 April and second on 29 April 2009.

First legs

Second leg

Final

The final was held at Parken Stadium on 21 May 2009.