The Men's 200 metre freestyle competition at the 2019 World Championships was held on 22 and 23 July 2019.

Lithuania's Danas Rapšys finished first, but was disqualified for flinching just before the start.

[3] During the medal ceremony, Great Britain's Duncan Scott refused to shake hands with China's Sun Yang, with Sun Yang calling Scott a "loser" in response.

[4][5] Prior to the competition, the existing world and championship records were as follows.

The heats were held on 22 July at 10:57.