2019–20 LEN Champions League

The 2019–20 LEN Champions League was the 57th edition of LEN's premier competition for men's water polo clubs. The season started on 30 September 2019 and played its last games on 4 March 2020 due to the COVID-19 pandemic.

Schedule
The schedule of the competition is as follows.

Qualification round III

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Preliminary round
The draw for the 2019–20 LEN Champions League preliminary round has been conducted in Barcelona. In the regular season, teams will play against each other home-and-away in a round-robin format. The top four teams in group A and the top three teams in group B will advance to the Final 8. Also, Pro Recco will participate in the Final 8 as the host of tournament. The matchdays will be from 8 October 2019 to 20 May 2020. Teams are ranked according to points (3 points for a win, 1 point for a draw, 0 points for a loss), and if tied on points, the following tiebreaking criteria are applied, in the order given, to determine the rankings:


 * Points in head-to-head matches among tied teams;
 * Goal difference in head-to-head matches among tied teams;
 * Goals scored in head-to-head matches among tied teams;
 * Goal difference in all group matches;
 * Goals scored in all group matches.

Final 8
5–7 June 2020, Recco, Italy.

Bracket

 * 5th–8th place bracket