| Aquatics at the 1977 SEA Games | |
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Aquatics at the 1977 Southeast Asian Games included swimming, diving and water polo events. The three sports of aquatics were held in Kuala Lumpur, Malaysia. Aquatics events was held between 20 November to 24 November.
| Event | Gold | Silver | Bronze | |||
|---|---|---|---|---|---|---|
| 100 m freestyle |  Kristiono Sumono | 55.4 (GR) | Gerald Item |  Marc Tay | 56.83 | |
| 200 m freestyle | Kristiono Sumono | 1:58.84 (GR) | Gerald Item |  Jairulla Jaitulla | ||
| 400 m freestyle | Kristiono Sumono | 4:14.98 | Mark Joseph | Vicente Cheng | ||
| 1500 m freestyle | Kristiono Sumono | 16:48.57 | Mark Joseph | Khoo Teng Cheong | 17:22.76 | |
| 100 m backstroke | Lukman Niode | 1:02.87 | Shared gold |  Lim Yit Aun | ||
| Mark Chan | ||||||
| 200 m backstroke | Lukman Niode | 2:17.3 | Chiang Jin Choon | Lim Yit Aun | ||
| 100 m breaststroke | Jairulla Jaitulla | 1:09.07 (GR) | Kun Hantio Prastiasto | 1:09.28 | Kemalpasa Umih | |
| 200 m breaststroke | Kun Hantio Prastiasto | 2:30.08 | Jairulla Jaitulla | Kemalpasa Umih | ||
| 100 m butterfly | Gerald Item | 1:00.71 |  Viret Onkprasert | Richard Quek | 1:02.35 | |
| 200 m butterfly | Gerald Item | 2:09.30 (GR) | Richard Quek | 2:15.45 | Danny Ee | 2:15.70 |
| 400 m individual medley | Gerald Item | 4:51.26 | John Item | Jairulla Jaitulla | ||
| 4 × 100 m freestyle relay | Indonesia | 3:46.84 | Singapore | Philippines | ||
| 4 × 200 m freestyle relay | Indonesia Dwijayanto John Item Gerald Item Kristiono Sumono | 8:15.6 | Philippines Vicente Cheng Edgar Borja Jairulla Jaitulla Mark Joseph | 8:23.48 | Singapore Ng Meng Seng Marc Tay Oon Jin Teik Khoo Teng Cheong | 8:42.23 |
| 4 × 100 m medley relay | Indonesia | 4:06.83 | Singapore | 4:14.75 | Malaysia | |
| Event | Gold | Silver | Bronze | |||
|---|---|---|---|---|---|---|
| 100 m freestyle | Rachaniwan Bulakul | 1:01.61 | Nancy Deano | Sumacanan | ||
| 200 m freestyle | Junie Sng | 2:10.82 | Rachaniwan Bulakul | Christina Lam Yong Leng | ||
| 400 m freestyle | Junie Sng | 4:30.75 (GR) | Rachaniwan Bulakul | Christina Lam Yong Leng | ||
| 800 m freestyle | Junie Sng | 9:14.63 | Rachaniwan Bulakul | 9:35.63 | Christina Lam Yong Leng | 9:40.38 |
| 100 m backstroke | Nanik Juliati | 1:11.92 (GR) | Lim Yit Sin | Tati Irianti Erningpraja | ||
| 200 m backstroke | Nanik Juliati | Nancy Deano | Lim Yit Sin | |||
| 100 m breaststroke | Anita Suparjiman | 1:18.92 | Nanik Juliati | Desiree Lim | 1:20.10 | |
| 200 m breaststroke | Anita Suparjiman | 2:51.57 (GR) | Nanik Juliati | Desiree Lim | 2:53.14 | |
| 100 m butterfly | Junie Sng | 1:08.92 | Christina Lam Yong Leng | Rachaniwan Bulakul | ||
| 200 m butterfly | Junie Sng | 2:27.87 (GR) | Christina Lam Yong Leng | 2:30.92 | Nunung Selowati | 2:31.13 |
| 200 m individual medley | Nanik Juliati | 2:32.69 | Junie Sng | 2:33.99 | Maulinawati Suharyono | |
| 4 × 100 m freestyle relay | Thailand | 4:17.79 | Indonesia | 4:21.79 | Philippines | 4:23.27 |
| 4 × 100 m medley relay | Indonesia | 4:45.14 | Malaysia | Singapore | ||
| Event | Gold | Silver | Bronze | |||
|---|---|---|---|---|---|---|
| Highboard | Sungwal Foangdee | 426.66 pts | Chan Chee Keong | Frank Jediman | ||
| Platform | Somchai Ongkasingha | 390.30 pts | Somkid Ongkasingha | Teo Cheng Kiat | ||
| Event | Gold | Silver | Bronze | |||
|---|---|---|---|---|---|---|
| Highboard | Harly Ramayani | 281.31 pts | Sianti Ningsih | |||
| Platform | Harly Ramayani | Sianti Ningsih | ||||
| Springboard | Myrna Harjolukita | 402.06 pts | Sianti Ningsih | Linda Williams | ||
| Event | Gold | Silver | Bronze |
|---|---|---|---|
| Men's | Singapore | Malaysia | Indonesia |
| Rank | Nation | Gold | Silver | Bronze | Total |
|---|---|---|---|---|---|
| 1 | Indonesia | 22 | 10 | 5 | 37 |
| 2 | Singapore | 7 | 4 | 8 | 19 |
| 3 | Thailand | 4 | 5 | 2 | 11 |
| 4 |  Philippines | 1 | 6 | 7 | 14 |
| 5 | Malaysia | 0 | 7 | 9 | 16 |
| Totals (5 entries) | 34 | 32 | 31 | 97 | |