2021 UCI Track Cycling World Championships – Men's keirin

The Men's keirin competition at the 2021 UCI Track Cycling World Championships was held on 21 October 2021.

First round
The first round was started at 13:00. The first two riders from each heat qualified for the second round, all other riders moved to the repechages.


 * Heat 1


 * Heat 3


 * Heat 2


 * Heat 4

First round repechage
The first round repechage was started at 13:52. The first rider from each heat qualified for the second round.


 * Heat 1


 * Heat 3


 * Heat 2


 * Heat 4

Second round
The second round was started at 14:35. The first three riders in each heat qualified for the final, all other riders raced for places 7 to 12.


 * Heat 1


 * Heat 2

Finals
The finals were started at 20:33.