2021 IFAF Men's Flag Football World Championship

The 2021 IFAF Men's Flag Football World Championships was the 10th World Championships in men's flag football. The tournament took place in Jerusalem, Israel, from 6 to 8 December 2021.

Tournament groups
After the group ballot, 21 teams are divided into 3 groups of 5 a 1 group of 6. In the group stage each team plays each other once, while the second stage of the event includes play-offs and placement matches.

The two best teams of each group advance to the quarter-finals.

Final ranking
The top seven teams, not including the United States, qualified for the 2022 World Games.