Swimming was contested at the 1994 Asian Games in Hiroshima Big Wave Pool, Hiroshima, Japan from October 3 to October 8, 1994.
| 50 m freestyle | 23.12 | 23.24 | 23.25 | ||||
| 100 m freestyle | 51.09 | 51.26 | 51.28 | ||||
| 200 m freestyle | 1:51.08 | 1:52.75 | 1:52.80 | ||||
| 400 m freestyle | 3:54.72 | 3:55.86 | 3:56.16 | ||||
| 1500 m freestyle | 15:29.70 | 15:31.91 | 15:34.46 | ||||
| 100 m backstroke | 56.08 | 56.45 | 57.04 | ||||
| 200 m backstroke | 2:00.65 | 2:01.34 | 2:01.66 | ||||
| 100 m breaststroke | 1:02.04 | 1:03.42 | 1:03.94 | ||||
| 200 m breaststroke | 2:14.56 | 2:14.91 | 2:16.52 | ||||
| 100 m butterfly | 53.97 | 54.27 | 55.05 | ||||
| 200 m butterfly | 2:01.47 | 2:01.64 | 2:01.70 | ||||
| 200 m individual medley | 2:04.16 | 2:05.77 | 2:06.19 | ||||
| 400 m individual medley | 4:20.03 | 4:29.85 | 4:30.53 | ||||
| 4 × 100 m freestyle relay | 3:23.80 | 3:25.12 | 3:28.58 | ||||
| 4 × 200 m freestyle relay | Taihei Maeda Yukihiro Matsushita Masayuki Fujimoto Kazunori Hikida | 7:27.18 | 7:33.61 | 7:39.76 | |||
| 4 × 100 m medley relay | 3:41.70 | Lin Laijiu Wang Yiwu Jiang Chengji Qiu Jieming | 3:45.28 | 3:47.35 |
| 50 m freestyle | 26.29 | 26.59 | 26.95 | ||||
| 100 m freestyle | 54.40 | 56.67 | 56.68 | ||||
| 200 m freestyle | 1:59.77 | 2:00.30 | 2:00.33 | ||||
| 400 m freestyle | 4:15.64 | 4:15.82 | 4:22.16 | ||||
| 800 m freestyle | 8:31.57 | 8:43.73 | 8:48.29 | ||||
| 100 m backstroke | 1:00.71 | 1:03.12 | 1:03.16 | ||||
| 200 m backstroke | 2:09.46 | 2:13.46 | 2:14.42 | ||||
| 100 m breaststroke | 1:09.87 | 1:10.96 | 1:11.54 | ||||
| 200 m breaststroke | 2:28.34 | 2:29.72 | 2:31.10 | ||||
| 100 m butterfly | 58.38 | 58.70 | 1:01.62 | ||||
| 200 m butterfly | 2:06.77 | 2:10.25 | 2:10.30 | ||||
| 200 m individual medley | 2:15.42 | 2:15.73 | 2:18.78 | ||||
| 400 m individual medley | 4:40.47 | 4:45.64 | 4:46.42 | ||||
| 4 × 100 m freestyle relay | 3:46.41 | 3:54.36 | 3:56.92 | ||||
| 4 × 100 m medley relay | 4:07.69 | 4:10.87 | 4:22.11 |