# Aquatics at the 1979 SEA Games

Aquatics at the 1979 Southeast Asian Games included swimming, diving and water polo events. The three sports of aquatics were held at Senayan Aquatic Sport Complex, Jakarta, Indonesia. Aquatics events was held between 24 September to 27 September.

## Medal winners
### Swimming
#### Men's events

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 100 m freestyle | Gerald Item | 55.12 | Ang Peng Siong | 55.47 | John Item | 56.01 |
| 200 m freestyle | Gerald Item | 2:01.43 | Dwi Widjajanto | 2:02.69 | Vicente Cheng | 2:03.46 |
| 400 m freestyle | William Wilson | 4:22.53 | Dwi Widjajanto | 4:23.23 | Khoo Teng Cheong | 4:24.71 |
| 1500 m freestyle | Khoo Teng Cheong | 17:42.98 | Dwi Widjajanto | 17:52.03 | William Wilson | 18:23.25 |
| 100 m backstroke | Lukman Niode | 1:01.09 | Richard Luna | 1:04.56 | Hii Toh Hock | 1:05.57 |
| 200 m backstroke | Lukman Niode | 2:14.55 | Richard Luna | 2:18.68 | Noel Madridejo | |
| 100 m breaststroke | Kun Hantio Prastiasto | 1:08.64 | Jairulla Jaitulla | 1:09.91 | G Pamor Brantakesuma | 1:11.71 |
| 200 m breaststroke | Kun Hantio Prastiasto | 2:31.05 | Jairulla Jaitulla | 2:36.17 | Gunawan J Junus | 2:36.63 |
| 100 m butterfly | Richard Quek | 59.78 | Gerald Item | 59.86 | John Item | 59.97 |
| 200 m butterfly | Gerald Item | 2:08.62 | John Item | 2:11.42 | Khoo Teng Cheong | 2:12.50 |
| 200 m individual medley | Gerald Item | 2:16.73 | John Item | 2:17.34 | Lim Seng Hock | 2:19.67 |
| 400 m individual medley | Gerald Item | 4:48.91 | John Item | 4:50.96 | Lim Seng Hock | 5:01.03 |
| 4×100 m freestyle relay | Indonesia | 3:42.52 | Singapore | 3:45.04 | Philippines | 3:57.66 |
| 4×200 m freestyle relay | Indonesia | 8:11.78 | Singapore | 8:29.35 | Philippines | 8:30.35 |
| 4×100 m medley relay | Indonesia | 4:07.24 | Philippines | 4:16.68 | Malaysia | 4:19.42 |

#### Women's events

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 100 m freestyle | Nanik Juliati | 1:01.20 | Sirirat Changkasiri | 1:02.79 | Helen Chow | 1:03.17 |
| 200 m freestyle | Sirirat Changkasiri | 2:12.12 | Junie Sng | 2:13.63 | Nunung Selowati | |
| 400 m freestyle | Junie Sng | 4:38.29 | Sirirat Changkasiri | 4:40.77 | Nunung Selowati | 4:42.80 |
| 800 m freestyle | Junie Sng | 9:32.94 | Nunung Selowati | 9:34.38 | Tan Guat Kim | 9:50.16 |
| 100 m backstroke | Nanik Juliati | 1:10.32 | Helen Chow | 1:11.49 | Christina Lam | 1:11.85 |
| 200 m backstroke | Nanik Juliati | 2:30.88 | Christina Lam | 2:31.05 | Maria Theresa Espinoza | 2:36.26 |
| 100 m breaststroke | Nanik Juliati | 1:17.42 | Anita Suparjiman | 1:19.15 | Nancy Deano | 1:22.04 |
| 200 m breaststroke | Nanik Juliati | 2:46.80 | Anita Suparjiman | 2:53.16 | Andrew Phang | 2:59.25 |
| 100 m butterfly | Junie Sng | 1:07.77 | Nunung Selowati | 1:09.51 | Mavis Ee | 1:09.71 |
| 200 m butterfly | Junie Sng | 2:23.89 | Nunung Selowati | 2:25.34 | Mavis Ee | 2:31.17 |
| 200 m individual medley | Nanik Juliati | 2:28.67 | Junie Sng | 2:34.06 | Anita Suparjiman | 2:35.21 |
| 400 m individual medley | Junie Sng | 5:21.06 | Nanik Juliati | 5:26.35 | Mavis Ee | 5:29.13 |
| 4×100 m freestyle relay | Indonesia | 4:17.79 | Malaysia | 4:18.91 | Thailand | 4:21.02 |
| 4×100 m medley relay | Indonesia | 4:46.32 | Thailand | 4:53.69 | Singapore | 4:53.97 |

### Water polo

| Event | Gold | Silver | Bronze |
| Men's | Singapore | Indonesia | |