The 2020 FINA Men's Water Polo World League was the 19th edition of the annual men's international water polo tournament.

It was played between November 2019 and July 2021 and open to all men's water polo national teams.

[2] Montenegro won their third overall title, after defeating the United States in the final.

[3] In the world league, there are specific rules that do not allow matches to end in a draw.

The following points will be awarded per match to each team: The preliminary round was played in the Round-robin system.