| Event: | Swimming |
| Games: | 1951 Asian Games |
| Venue: | National Stadium Swimming Pool |
| Dates: | 5–7 March 1951 |
| Next: | 1954 |
Swimming was contested at the inaugural 1951 Asian Games in National Stadium Swimming Pool, New Delhi, India from March 5 to March 7, 1951 with eight events all for men.[1]
Singapore was the most successful team in this event. Neo Chwee Kok of Singapore dominated the competition by winning four gold medals.
| 100 m freestyle | 1:04.7 | 1:04.7 | 1:04.8 | ||||
| 400 m freestyle | 5:13.8 | 5:31.4 | 5:32.5 | ||||
| 800 m freestyle | 11:02.2 | 11:25.5 | 11:30.7 | ||||
| 1500 m freestyle | 21:43.6 | 22:17.5 | 22:21.7 | ||||
| 100 m backstroke | 1:16.3 | 1:17.0 | 1:17.4 | ||||
| 200 m breaststroke | 2:54.4 | 2:54.8 | 3:11.0 | ||||
| 4 × 100 m freestyle relay | Wiebe Wolters Lionel Chee Barry Mitchell Neo Chwee Kok | 4:19.8 | Nurhatab Rajab Mohammad Mala Serafin Villanueva Sotero Alcantara | 4:23.2 | 4:28.8 | ||
| 3 × 100 m medley relay | Artemio Salamat Jacinto Cayco Nurhatab Rajab | 3:36.5 | Lionel Chee Tan Hwee Hock Neo Chwee Kok | 3:39.5 | Kanti Shah Jehangir Naegamwalla Sachin Nag | 3:43.6 |