| Event: | Swimming |
| Competition: | 1959 Mediterranean Games |
| Location: | Beirut, Lebanon |
| Dates: | 11–23 October 1959 |
| Previous: | 1955 |
| Next: | 1963 |
The swimming competition at the 1959 Mediterranean Games was held in Beirut, Lebanon.
| 100 m freestyle | 57.2 | 58.2 | 58.4 | ||||
| 400 m freestyle | 4:44.5 | 4:44.9 | 4:47.8 | ||||
| 1500 m freestyle | 19:05.4 | 19:48.6 | 20:03.6 | ||||
| 100 m backstroke | 1:04.8 | 1:06.4 | 1:08.1 | ||||
| 200 m breaststroke | 2:48.7 | 2:51.8 | 2:55.6 | ||||
| 200 m butterfly | 2:26.7 | 2:30.3 | 2:36.1 | ||||
| 4 × 200 m freestyle relay | 8:50.6 | 9:00.7 | 9:09.7 | ||||
| 4 × 100 m medley relay | 4:27.1 | 4:31.0 | 4:35.7 |