| Swimming at the Summer Olympics | |
|---|---|
 | |
| IOC Code | SWM OWS (Marathon Swimming) |
| Governing body | World Aquatics |
| Events | 37 (men: 18; women: 18; mixed: 1) |
| Summer Olympics | |
Swimming has been a sport at every modern Summer Olympics. It has been open to women since 1912. At the Olympics, swimming has the second-highest number of medal-contested events after athletics.