The Men's 50 metre freestyle competition at the 2019 World Championships was held on 26 and 27 July 2019.

[1][2] Caeleb Dressel finished first in the final, retaining the title he won in the previous Championships.

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

The heats were held on 26 July at 10:43.

[4] The swim-off was held on 26 July at 12:00.