| 2013–14 LEN Champions League | |
| League: | LEN Champions League |
| Sport: | Water Polo |
| Finals Champ: |  Atlètic-Barceloneta |
| Finals Runner-Up: |  Radnički |
| Finals Mvp: | Albert Español (CN Atlètic-Barceloneta) |
| Seasonslist: | LEN Champions League |
| Seasonslistnames: | Champions League |
| Prevseason Link: | 2012–13 LEN Champions League |
| Prevseason Year: | 2012–13 |
| Nextseason Link: | 2014–15 LEN Champions League |
| Nextseason Year: | 2014−15 |
The 2013–14 LEN Champions League was the 51st edition of LEN's premier competition for men's water polo clubs. The Final Six (quarterfinals, semifinals, final, and third place game) took place May 28 to May 31 in Barcelona.
Piscines Bernat Picornell, Barcelona, Spain
Quarter-finals----
5th place
Semi-finals----
Third place
Final
| Daniel Pinedo, Balázs Szirányi, Felipe Perrone, Alberto Munárriz, Albert Español, Marc Minguell, Marc Roca, Gonzalo Echenique, Nemanja Ubović, Francisco Fernández, Rubén de Lera, Marko Petković, Mario Lloret | |
| Head coach | |
| Jesús Martín |
| width=25 | width=220 | Team | |
|---|---|---|---|
| Atlètic-Barceloneta | |||
| Radnički | |||
| Primorje | |||
| Partizan | |||
 Brescia | |||
| Pro Recco |