The swimming competitions at the 1968 Summer Olympics in Mexico City took place from 17 to 26 October at the Alberca Olímpica Francisco Márquez.

[2] The United States dominated the competition, winning 52 of 87 possible medals.

15-year-old American phenom Debbie Meyer from Maryland won three gold medals.

Swimming at the 1968 Olympics featured a total of 29 events (15 for men and 14 for women).

This was a significant increase from the 18 events contested in the previous Olympic Games.