# Aquatics at the 1999 SEA Games

Aquatics at the 1999 Southeast Asian Games included swimming, diving and water polo events. The three sports of aquatics were held at Hassanal Bolkiah Aquatics Center in Bandar Seri Begawan, Brunei Darussalam. Aquatics events was held between 8 August to 13 August.

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

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 50 m freestyle | Richard Sam Bera | 23.49 | Wisnu Wardhana | 23.71 | Leslie Kwok | 23.79 |
| 100 m freestyle | Richard Sam Bera | 51.03 | Allen Ong Hou Ming | 51.73 | Mark Chay | 51.95 |
| 200 m freestyle | Vicha Ratanachote | 1:53.43 | Mark Chay | 1:53.98 | Sng Ju Wei | 1:54.25 |
| 400 m freestyle | Dieung Manggang | 4:00.34 | Sng Ju Wei | 4:04.55 | Torwai Sethsothorn | 4:05.17 |
| 1500 m freestyle | Dieung Manggang | 15:57.47 | Carlo Piccio | 15:57.85 | Steven Chandra | 16:02.63 |
| 100 m backstroke | Alex Lim | 56.20 | Gary Tan | 58.00 | Felix Christiadi Sutanto | 59.27 |
| 200 m backstroke | Alex Lim | 2:02.09 | Gary Tan | 2:05.79 | Felix Christiadi Sutanto | 2:08.07 |
| 100 m breaststroke | Elvin Chia Tshun Thau | 1:02.96 | Daniel Liew | 1:04.95 | Non Poonchaisri | 1:05.95 |
| 200 m breaststroke | Elvin Chia Tshun Thau | 2:15.62 | Ratapong Sirisanont | 2:17.64 | Muhammad Akbar Nasution | 2:20.59 |
| 100 m butterfly | Albert Christiadi Sutanto | 56.25 | Anthony Ang | 56.47 | Wisnu Wardhana | 56.72 |
| 200 m butterfly | Albert Christiadi Sutanto | 2:02.06 | Alex Lim | 2:02.35 | Ratapong Sirisanont | 2:02.71 |
| 200 m individual medley | Ratapong Sirisanont | 2:04.26 | Pathunyu Yimsomruay | 2:04.99 | Felix Christiadi Sutanto | 2:09.36 |
| 400 m individual medley | Ratapong Sirisanont | 4:25.16 | Albert Christiadi Sutanto | 4:25.19 | Torwai Sethsothorn | 4:31.21 |
| 4 × 100 m freestyle relay | Indonesia | 3:27.69 | Singapore | 3:28.12 | Malaysia | 3:29.62 |
| 4 × 200 m freestyle relay | Thailand | 7:38.89 | Singapore | | Indonesia | |
| 4 × 100 m medley relay | Malaysia | 3:45.61 | Thailand | 3:50.45 | Singapore | 3:55.56 |

#### Women's events

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 50 m freestyle | Joscelin Yeo Wei Ling | 26.23 | Pilin Tachakittiranan | 27.01 | Moe Thu Aung | 27.41 |
| 100 m freestyle | Joscelin Yeo Wei Ling | 56.05 | Pilin Tachakittiranan | 58.02 | Christel Bouvron Mei Yen | 58.85 |
| 200 m freestyle | Pilin Tachakittiranan | 2:04.60 | Christel Bouvron Mei Yen | 2:06.35 | Teo Mun Yee | 2:09.78 |
| 400 m freestyle | Pilin Tachakittiranan | 4:19.43 | Christel Bouvron Mei Yen | 4:21.87 | Joscelin Yeo Wei Ling | 4:28.59 |
| 800 m freestyle | Pilin Tachakittiranan | 8:59.45 | Sia Wai Yen | 9:02.51 | Christel Bouvron Mei Yen | 9:09.99 |
| 100 m backstroke | Chonlathorn Vorathamrong | 1:05.46 | Elsa Manora Nasution | 1:05.69 | Lizza Danila | 1:06.19 |
| 200 m backstroke | Chonlathorn Vorathamrong | 2:20.05 | Lizza Danila | 2:21.57 | Elsa Manora Nasution | 2:23.40 |
| 100 m breaststroke | Joscelin Yeo Wei Ling | 1:11.36 | Kathy Echeverri | 1:13.83 | Siow Yi Ting | 1:14.88 |
| 200 m breaststroke | Nicolette Teo | 2:36.27 | Tachaphorn Iamsanitamorn | 2:42.90 | Siow Yi Ting | 2:43.56 |
| 100 m butterfly | Joscelin Yeo Wei Ling | 1:00.44 | Praphalsai Minpraphal | 1:01.16 | Moe Thu Aung | 1:03.65 |
| 200 m butterfly | Praphalsai Minpraphal | 2:14.54 | Pilin Tachakittiranan | 2:17.01 | Christel Bouvron Mei Yen | 2:19.71 |
| 200 m individual medley | Joscelin Yeo Wei Ling | 2:17.17 | Sia Wai Yen | 2:20.64 | Ravee Inporn Udom | 2:23.99 |
| 400 m individual medley | Joscelin Yeo Wei Ling | 4:51.87 | Sia Wai Yen | 4:52.52 | Duangruthai Thammapanya | 5:04.70 |
| 4 × 100 m freestyle relay | Thailand | 3:53.33 | Singapore | 3:56.99 | Indonesia | 4:00.04 |
| 4 × 200 m freestyle relay | Thailand | 8:25.51 | Singapore | 8:32.06 | Indonesia | 8:47.41 |
| 4 × 100 m medley relay | Thailand | 4:20.76 | Malaysia | 4:27.07 | Singapore | 4:29.37 |

### Diving

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| Men's 3 m springboard | Yeoh Ken Nee | 582.05 | Suchart Pichi | 535.20 | Atthain Anupan | 526.05 |
| Men's 10 m platform | Yeoh Ken Nee | 577.15 | Husaini Noor | 519.55 | Muhammad Nasrullah | 497.35 |
| Women's 3 m springboard | Farah Begum Abdullah | 456.50 | Leong Mun Yee | 444.95 | Eka Purnama Indah | |
| Women's 10 m platform | Shenny Ratna Amelia | 430.90 | Tammaoros Sukruthai | 420.90 | Leong Mun Yee | 410.70 |

### Water polo

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