The men's kumite 75 kg competition in Karate at the 2020 Summer Olympics was held on 6 August 2021 at the Nippon Budokan.

[1] The competition began with a two-pool round-robin stage followed by a single elimination stage.

The athlete that finished first in Pool A will face the athlete that finished second in Pool B in the semifinals, and vice versa.

There were no bronze medal matches in the kumite events.

Losers of the semifinals each received a bronze medal.