2023–24 LEN Euro Cup
| 2023–24 LEN Euro Cup | |
|---|---|
| League | LEN Euro Cup |
| Sport | Water polo |
| Duration | 21 September 2023 – 18 May 2024 |
| Number of games | 140 |
| Number of teams | 36 (from 10+1 countries) |
| Finals champions | Jug AO Dubrovnik (2nd title) |
| Runners-up | Primorje Erste Bank Rijeka |
The 2023–24 LEN Euro Cup is the 32nd edition of the water polo competition organised by the Ligue Européenne de Natation (LEN). This is the first season under the new changes made by LEN.
The defending champions were A-Híd Vasas Plaket, but they were eliminated by Jug AO Dubrovnik in the eight-finals.
The winners were Jug AO Dubrovnik, who defeated Primorje Erste Bank Rijeka 12–6 in an all-Croatian final.