# Swimming at the 1978 Asian Games

Swimming was contested at the 1978 Asian Games in Kasetsart University, Bangkok, Thailand from December 12 to December 17, 1978.

## Medalists
### Men

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 100 m freestyle details | Tsuyoshi Yanagidate Japan | 54.10 GR | Guo Ruishan China | 54.25 | Gerardo Rosario Philippines | 54.28 |
| 200 m freestyle details | Gerardo Rosario Philippines | 1:56.68 GR | Kristiono Sumono Indonesia | 1:56.76 | Hiroshi Sakamoto Japan | 1:57.33 |
| 400 m freestyle details | Shuji Tsukasaki Japan | 4:06.83 GR | Kazuhiko Yoshihara Japan | 4:07.22 | Kristiono Sumono Indonesia | 4:08.30 |
| 1500 m freestyle details | Shuji Tsukasaki Japan | 16:14.92 GR | Takehiko Kawakami Japan | 16:47.83 | Mark Joseph Philippines | 16:49.87 |
| 100 m backstroke details | Kenji Ikeda Japan | 1:00.76 GR | Tsuyoshi Takahashi Japan | 1:01.27 | Tang Qun China | 1:01.96 |
| 200 m backstroke details | Tsuyoshi Takahashi Japan | 2:10.87 GR | Tang Qun China | 2:12.48 | Kenji Ikeda Japan | 2:13.52 |
| 100 m breaststroke details | Shigehiro Takahashi Japan | 1:04.94 GR | Hiroshi Kabatani Japan | 1:05.75 | Wang Lin China | 1:06.42 |
| 200 m breaststroke details | Shigehiro Takahashi Japan | 2:22.56 GR | Hiroshi Kabatani Japan | 2.23.71 | Wang Lin China | 2:26.43 |
| 100 m butterfly details | Shinsuke Kayama Japan | 58.41 | Luo Zhaoying China | 58.58 | Gerald Item Indonesia | 59.64 |
| 200 m butterfly details | Shinsuke Kayama Japan | 2:06.68 GR | Gerald Item Indonesia | 2:08.46 | Cho Oh-yun South Korea | 2:09.19 |
| 200 m individual medley details | Tsuyoshi Yanagidate Japan | 2:10.22 GR | Kozo Tatsumi Japan | 2:11.95 | Gerald Item Indonesia | 2:14.04 |
| 400 m individual medley details | Kozo Tatsumi Japan | 4:40.80 GR | Tsuyoshi Yanagidate Japan | 4:40.86 | Gerald Item Indonesia | 4:46.56 |
| 4 × 100 m freestyle relay details | Japan Hiroshi Sakamoto Shinya Izumi Shigeki Yamazaki Tsuyoshi Yanagidate | 3:35.91 GR | China Cui Fang Huang Guangliang Mo Zhengjie Zhong Guiyu | 3:39.63 | Indonesia Gerald Item Dwi Widjayanto John David Item Kristiono Sumono | 3:40.24 |
| 4 × 200 m freestyle relay details | Japan Kazuhiko Yoshihara Hiroshi Sakamoto Shigeki Yamazaki Tsuyoshi Yanagidate | 7:49.75 GR | Indonesia Dwi Widjayanto John David Item Gerald Item Kristiono Sumono | 8:05.55 | Philippines Vicente Cheng Mark Joseph Jairulla Jaitulla Gerardo Rosario | 8:07.10 |
| 4 × 100 m medley relay details | Japan Kenji Ikeda Shigehiro Takahashi Shinsuke Kayama Shigeki Yamazaki | 3:56.97 GR | China Tang Qun Wang Lin Fan Liuke Lu Zhurong | 4:01.08 | Indonesia Lukman Niode Kun Hantyo Gerald Item Dwi Widjayanto | 4:03.98 |

### Women

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 100 m freestyle details | Sachiko Yamazaki Japan | 1:00.30 GR | Shiho Sakanishi Japan | 1:00.84 | Ratchaneewan Bulakul Thailand | 1:01.41 |
| 200 m freestyle details | Ratchaneewan Bulakul Thailand | 2:09.98 GR | Junie Sng Singapore | 2:11.08 | Sachiko Yamazaki Japan | 2:11.09 |
| 400 m freestyle details | Junie Sng Singapore | 4:31.35 GR | Kana Kamo Japan | 4:32.86 | Ratchaneewan Bulakul Thailand | 4:34.08 |
| 800 m freestyle details | Junie Sng Singapore | 9:18.33 GR | Kana Kamo Japan | 9:22.48 | Magumi Tochihara Japan | 9:29.83 |
| 100 m backstroke details | Hisae Asari Japan | 1:06.74 GR | Naoko Miura Japan | 1:07.23 | Choi Yun-jung South Korea | 1:09.57 |
| 200 m backstroke details | Hisae Asari Japan | 2:23.12 GR | Naoko Miura Japan | 2:25.13 | Choi Yun-jung South Korea | 2:26.91 |
| 100 m breaststroke details | Chieko Watanabe Japan | 1:16.04 GR | Liang Weifen China | 1:17.06 | Chiharu Mori Japan | 1:17.19 |
| 200 m breaststroke details | Chieko Watanabe Japan | 2:41.01 GR | Chiharu Mori Japan | 2:46.01 | Liang Weifen China | 2:47.50 |
| 100 m butterfly details | Yasue Hatsuda Japan | 1:03.56 GR | Naoko Kume Japan | 1:03.84 | Shao Tongmei China | 1:07.99 |
| 200 m butterfly details | Yasue Hatsuda Japan | 2:15.79 GR | Naoko Kume Japan | 2:16.80 | Nunung Selowati Indonesia | 2:25.45 |
| 200 m individual medley details | Mio Hirata Japan | 2:27.98 | Yuko Imamichi Japan | 2:29.06 | Liang Weifen China | 2:30.12 |
| 400 m individual medley details | Mio Hirata Japan | 5:08.34 GR | Yuko Imamichi Japan | 5:11.43 | Naniek Suwadji Indonesia | 5:22.73 |
| 4 × 100 m freestyle relay details | Japan Sachiko Yamazaki Shiho Sakanishi Mika Saito Makiko Takahashi | 4:03.58 GR | China Lou Yinghua Liu Yafang Cheng Fengying Yu Ping | 4:12.43 | Thailand Sumatana Pingkalawan Sirirat Changkasiri Sansanee Changkasiri Ratchaneewan Bulakul | 4:17.50 |
| 4 × 100 m medley relay details | Japan Hisae Asari Chieko Watanabe Yasue Hatsuda Sachiko Yamazaki | 4:27.16 GR | China Chen Weiying Liang Weifen Shao Tongmei Liang Xiuqiong | 4:39.54 | Indonesia Naniek Suwadji Anita Sapardjiman Tati Irianti Erningpraja Nunung Selowati | 4:45.46 |

## Medal table

| Rank | Nation | Gold | Silver | Bronze | Total |
| 1 | Japan (JPN) | 25 | 17 | 5 | 47 |
| 2 | Singapore (SIN) | 2 | 1 | 0 | 3 |
| 3 | Philippines (PHI) | 1 | 0 | 3 | 4 |
| 3 | Thailand (THA) | 1 | 0 | 3 | 4 |
| 5 | China (CHN) | 0 | 8 | 6 | 14 |
| 6 | Indonesia (INA) | 0 | 3 | 9 | 12 |
| 7 | South Korea (KOR) | 0 | 0 | 3 | 3 |
| Totals (7 entries) | Totals (7 entries) | 29 | 29 | 29 | 87 |