| Event: | Sailing |
| Games: | 2005 |
| Venue: | Subic Bay Yacht Club |
| Location: | Subic Bay Freeport Zone, Olongapo City, Zambales |
| Date: | November 26 – December 2 |
| Next: | 2007 |
Sailing at the 2005 SEA Games took place at the Subic Bay Yacht Club, Subic Bay Freeport Zone, Zambales, Philippines. Twelve gold medals were contested. The event was scheduled to be held from November 26 to December 4, but wind conditions led to the organisers bringing the races forward to conclude the events by December 2.
| RS:X | nowrap | nowrap | |||
| Formula | |||||
| Optimist | |||||
| Laser | nowrap | ||||
| 420 | Teo Wee Chin Terence Koh | Nay La Kyaw Min Min | Paradon Chuasanga Krisanasak Phibun | ||
| 470 | Maung Aung Myin Thu Sai Pyae Sone Hein | Roy Tay Jun Hao Chung Pei Ming | Ridgely Balladares Rommel Chavez |
| Optimist | |||||
| Laser Radial | nowrap | ||||
| 420 | nowrap | Siobhan Tam Shiu Wun Dawn Liu Xiaodan | Su Sandar Wai Zin April Aung | nowrap | Duanghathai Booncherd Janjira Meesap |
| 470 | Toh Liying Tok Lee Ching | Saw Sue Myat Soe New New San | Wandee Vongtim Yupa Sunnawat |
| 420 | nowrap | Xu Yuan Zhen Justin Wong Ming Ho | Wiwat Poonpat Kitipong Khambang | Rafael Buitre Richly Magsanay | |||
| Hobie 16 | nowrap | Damrongsak Vongtim Sakda Vongtim | nowrap | Melcom Huang Jinjie Chung Pei Quan | nowrap | Louie Perfectua Mark Gil Francisco |
| Rank | Helm | Crew | Race | Total | Nett | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||||||
| 1 |  Xu Yuan Zhen | Wong Ming Ho Justin | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 15 | 10 | |||
| 2 |  Wiwat Poonpat | Kitipong Khambang | 3 | 3 | 1 | 2 | 1 | 1 | 1 | 2 | 22 | 14 | |||
| 3 |  Rafael Buitre | Richly Magsanay | 2 | 2 | 2 | 4 | 2 | 3 | 2 | 3 | 28 | 20 | |||
| 4 |  Yan Myo Aung | Zaw One | 3 | 4 | 3 | 3 | 3 | 4 | 3 | 4 | 36 | 27 | |||
1) Disqualified.
| Rank | Helm | Crew | Race | Total | Nett | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||||||
| 1 | Teo Wee Chin | Terence Koh | 2 | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 22 | 11 | |||
| 2 | Nay La Kyaw | Min Min | 3 | 2 | 3 | 1 | 2 | 1 | 1 | 2 | 23 | 15 | |||
| 3 | Paradon Chuasanga | Krisanasak Phibun | 1 | 1 | 2 | 3 | 2 | 5 | 3 | 3 | 32 | 20 | |||
| 4 | Emerson Villena | Lester Troy Tayong | 3 | 2 | 3 | 4 | 4 | 4 | 3 | 3 | 36 | 26 | |||
| 5 |  Murhadi bin Usman | Setiyawan bin Jazari | 4 | 4 | 3 | 5 | 4 | 4 | 4 | 2 | 40 | 30 | |||
1) Disqualified.
| Rank | Helm | Crew | Race | Total | Nett | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||||||
| 1 | Maung Aung Myin Thu | Sai Pyae Sone Hein | 2 | 1 | 2 | 2 | 1 | 3 | 1 | 3 | 14 | 14 | |||
| 2 | Tay Jun Hao Roy | Chung Pei Ming | 1 | 3 | 3 | 2 | 2 | 2 | 1 | 3 | 25 | 17 | |||
| 3 | Ridgely Balladares | Rommel Chavez | 3 | 3 | 1 | 1 | 1 | 3 | 4 | 2 | 27 | 8 | |||
| 4 | Teerapong Watiboonruang | Pongwichean | 2 | 1 | 4 | 3 | 4 | 2 | 2 | 1 | 27 | 19 | |||
1) Disqualified.
| Rank | Helm | Crew | Race | Total | Nett | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||||||
| 1 | Damrongsak Vongtim | Sakda Vongtim | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 13 | 9 | |||
| 2 | Chong Pei Quan | Huang Jinjie Melcom | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 17 | 13 | |||
| 3 | Louie Perfectua | Mark Gil Francisco | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 30 | 24 | |||