2023–24 LEN Euro Cup knockout stage

The 2023–24 LEN Euro Cup knockout stage details the matches played to decide the champion of the tournament.

Qualified teams
The knockout phase involves 16 teams: the eight teams which qualified as winners and runners-ups of each of the four groups in the group stage, and the eight third and fourth placed teams from the Champions League group stage.

Euro Cup group stage winners and runners-up


Eliminated teams from Champions League


Draw
The draw took place in Barcelona on 15 December 2023. The teams were split into two draws, one containing the four teams who finished fourth in the Champions League group stage, who would be pitted up against a Euro Cup group winner. The other half of the draw would see the third place teams from the Champions League group stage be drawn against a runner up of the Euro Cup group stage.

Matches
Jug AO Dubrovnik won 21–19 on aggregate

Crvena zvezda won 23–22 on aggregate

Spandau 04 won 22–20 on aggregate

Astralpool Sabadell won 33–23 on aggregate

Steaua București won 31–30 on aggregate

Primorje Erste Bank Rijeka won 28–22 on aggregate

RN Savona won 28–23 on aggregate

NC Vouliagmeni won 27–19 on aggregate

Quarter-finals
The draw took place in Barcelona on 26 March 2024. There was no seeding.

Matches
Spandau 04 won 23–20 on aggregate

Astralpool Sabadell won 13–11 on aggregate

Jug AO Dubrovnik won 29–19 on aggregate

Primorje Erste Bank Rijeka won 24–23 on aggregate