Swimming at the 2023 Pan American Games – Men's 100 metre freestyle

The men's 100 metre freestyle competition of the swimming events at the 2023 Pan American Games were held on October 23, 2023, at the Aquatic Center in Santiago, Chile.

Records
Prior to this competition, the existing world and Pan American Games records were as follows:

Heats
The first round was held on October 23.

Final B
The B final was also held on October 23.

Final A
The A final was also held on October 23.