| Event: | Swimming |
| Games: | 1998 |
| Venue: | National Aquatics Centre |
| Dates: | 12–17 September 1998 |
| Prev: | 1994 |
| Next: | 2002 |
The 'swimming events of the 1998 Commonwealth Games' were held at the National Aquatics Centre at the National Sports Complex, Malaysia from 12 - 17 September 1998.
| 50 m freestyle | 22.58 | 22.70 | 22.86 | ||||
| 100 m freestyle | 49.43 | 49.51 | 50.14 | ||||
| 200 m freestyle | 1:46.70 CR, OC | 1:48.05 | 1:48.26 | ||||
| 400 m freestyle | 3:44.35 GR | 3:44.88 | 3:48.91 | ||||
| 1500 m freestyle | 14:50.92 | 15:02.88 | 15:03.00 | ||||
| 100 m backstroke | 55.52 | 55.92 | 55.99 | ||||
| 200 m backstroke | 1:59.67 | 2:01.41 | 2:01.47 | ||||
| 100 m breaststroke | 1:02.00 | 1:02.46 | 1:02.52 | ||||
| 200 m breaststroke | 2:13.13 | 2:13.20 | 2:14.44 | ||||
| 100 m butterfly | 52.81 | 53.09 | 53.50 | ||||
| 200 m butterfly | 1:57.11 | 1:59.57 | 1:59.63 | ||||
| 200 m individual medley | 2:00.26 | 2:01.87 | 2:02.73 | ||||
| 400 m individual medley | 4:19.89 | 4:20.17 | 4:23.20 | ||||
| 4 × 100 m freestyle relay | 3:17.83 GR | 3:21.27 NR | 3:22.13 | ||||
| 4 × 200 m freestyle relay | Ian Thorpe (1:47.48) Daniel Kowalski (1:47.81) Matthew Dunn (1:49.15) Michael Klim (1:47.42) | 7:11.86 WR | 7:23.83 | 7:24.52 | |||
| 4 × 100 m medley relay | Josh Watson Geoff Huegill Simon Cowley Michael Klim Adrian Radley (heat) Chris Fydler (heat) | 3:38.52 GR | 3:40.73 NR | 3:42.74 |
| 50 m freestyle | 25.82 | 25.92 | 26.07 | ||||
| 100 m freestyle | 55.17 | 55.58 OC | 56.07 | ||||
| 200 m freestyle | 2:00.24 | 2:01.19 | 2:01.59 | ||||
| 400 m freestyle | 4:12.39 | 4:12.56 | 4:13.91 | ||||
| 800 m freestyle | 8:42.23 | 8:43.96 | 8:45.56 | ||||
| 100 m backstroke | 1:02.43 | 1:02.81 | 1:03.19 | ||||
| 200 m backstroke | 2:13.18 | 2:13.19 | 2:13.50 | ||||
| 100 m breaststroke | 1:08.71 | 1:09.08 | 1:09.11 | ||||
| 200 m breaststroke | 2:27.30 | 2:29.23 | 2:29.58 | ||||
| 100 m butterfly | 59.42 | 59.61 | 1:00.14 | ||||
| 200 m butterfly | 2:06.60 CR, OC | 2:10.42 | 2:11.67 | ||||
| 200 m individual medley | 2:15.05 | 2:15.28 | 2:15.39 | ||||
| 400 m individual medley | 4:43.74 | 4:47.69 | 4:48.43 | ||||
| 4 × 100 m freestyle relay | 3:42.61 CR, OC | 3:43.20 NR | 3:45.48 | ||||
| 4 × 200 m freestyle relay | 8:03.73 CR, OC | 8:10.09 | 8:11.84 | ||||
| 4 × 100 m medley relay | 4:06.36 GR | 4:09.52 | 4:13.96 |