List of Olympic records in swimming

Men's swimming has been part of the official program of the Summer Olympics since the Games' modern inception in 1896; it was not until 1912 that women's events were held.

The swimming events at the 1896 Olympic Games were held in a bay in the Aegean Sea with swimmers being required to swim to the shore—Hungarian swimmer Alfréd Hajós won two gold medals that year, saying "My will to live completely overcame my desire to win.

"[1][2] The 1900 Summer Olympic Games in Paris had the swimming events take place in the River Seine, and the events at the 1908 Summer Olympics were held in a 100-metre pool surrounded by an athletics track in the White City Stadium in London.

In the Swimming at the 2024 Summer Olympics in Paris, both men and women competed in eighteen events in the pool.

Of the 35 pool-based events, swimmers from the United States hold fifteen records, Australia five, France four, China, Canada and South Africa two each, and one each to Ireland, Great Britain, Russian Olympic Committee, Hungary, and Sweden.

Léon Marchand set Olympic records in four individual events at the 2024 Summer Olympics.
Caeleb Dressel holds Olympic records in two individual events and one relay event.
Michael Phelps holds Olympic records in one individual event and two relay events.
Katie Ledecky holds Olympic records in the 400, 800, and 1500 m freestyle events
Emma McKeon holds Olympic records in one individual and one relay event.