| Event: | Swimming |
| Games: | 1912 Summer |
| Venue: | Djurgårdsbrunnsviken |
| Dates: | 6–12 July 1912 |
| Num Events: | 9 |
| Competitors: | 120 |
| Nations: | 17 |
| Prev: | 1908 |
| Next: | 1920 |
At the 1912 Summer Olympics, nine swimming events were contested.[1] Swimming events were held in a 100 m course built in Stockholm harbor. For the first time, women's events were part of the Olympic swimming program. The competitions were held from Saturday July 6, 1912, to Friday July 12, 1912. There was a total of 120 participants from 17 countries competing.
| 100 m freestyle | ||||
| 400 m freestyle | ||||
| 1500 m freestyle | ||||
| 100 m backstroke | ||||
| 200 m breaststroke | ||||
| 400 m breaststroke | ||||
| 4 × 200 m freestyle relay | Cecil Healy Malcolm Champion Leslie Boardman Harold Hardwick | Ken Huszagh Harry Hebner Perry McGillivray Duke Kahanamoku | William Foster Thomas Battersby John Hatfield Henry Taylor |
| 100 m freestyle | ||||
| 4 × 100 m freestyle relay | Belle Moore Jennie Fletcher Annie Speirs Irene Steer | Wally Dressel Louise Otto Hermine Stindt Grete Rosenberg | Margarete Adler Klara Milch Josephine Sticker Berta Zahourek |
A total of 120 swimmers (93 men and 27 women) from 17 nations (men from 17 nations - women from 8 nations) competed at the Stockholm Games: