Singapore participated at the 2005 Southeast Asian Games in the Philippines under the IOC country code SIN. Sending a delegation of 658 athletes and 291 officials, the third largest it had ever sent to the games, the Singapore team set its target at 35 gold medals, five more than the haul won at the 2003 Southeast Asian Games held in Vietnam.

The selection criteria for participating in the games was set strictly based on their ability to win at least a bronze medal for the country. Hence, the Singapore National Olympic Council asked the various sporting federation bodies to nominate their candidates based on their performance between 1 March 2005 to 24 June 2005, with achievements above the bronze medal scores in previous games. While this process was relatively smooth for some sports such as swimming, table tennis and badminton, it raised issues on management and competence for others like athletics, chess and squash.

The Ministry of Community Development produced a theme song, Live Our Dreams, composed by Thomas Schönberg and sung by Kit Chan, to inspire the Singapore contingent in the games. The Chief of mission to the games was Oon Jin Teik.

Medals

Gold Aquatics Men's 400 m freestyle – Lee Jiann Yow Lionel (heats: 4:10.67, finals: 4:00.51) Men's 4 × 100 m freestyle relay – Chay Jung Jun Mark, Su Shirong Jeffrey, Tan Lee Yu Gary, Tay Zhi Rong Bryan (3:27.56) Men's 4 × 200 m freestyle relay – Chay Jung Jun Mark, Cheah Mingzhe Marcus, Tan Lee Yu Gary, Tay Zhi Rong Bryan (7:35.85, new games record) Men's water polo team tops round-robin tournament with a full 10 points. Women's 50 m freestyle – Joscelin Yeo (heats: 1:08.20, finals: 26.13, new games record) Women's 100 m freestyle – Joscelin Yeo (heats: 1:00.48, finals: 56.41s) Women's 100 m breaststroke – Joscelin Yeo (heats: 1:13.69, finals: 1:11.74) Women's 100 m backstroke – Tao Li (heats: 1:08.20, finals: 1:03.83 new games record) Women's 100 m butterfly – Joscelin Yeo (heats: 1:03.59, finals: 59.91 new games record) Women's 200 m backstroke – Tao Li (heats: 2:25.53, finals: 2:17.55) Women's 200 m breaststroke – Nicolette Teo (heats: 2:38.17, finals: 2:34.56) Women's 200 m butterfly – Tao Li (heats: 2:21.96, finals: 2:14.11, new games record) Women's 200 m individual medley – Joscelin Yeo (2:19.23) Women's 4 × 100 m medley relay – Ho Shu Yong, Tao Li, Nicolette Teo, Joscelin Yeo (4:14.49, new games record) Athletics Men's discus – Wong Tuck Yim James (55.11m) Women's discus – Du Xianhui (49.48m) Women's shot put – Zhang Guirong (17.40m) Billiards and Snooker Men's 9-ball pool singles – Chan Keng Kwang (defeated ?) Bodybuilding 65 kg – Ibrahim bin Sihat 75 kg – Chua Ling Fung Simon Fencing Women's foil team – Ng Yi Lin Ruth, Ser Xue Ling Serene, Tay Yu Ling and Wong Ye Han Cheryl (defeated Vietnam 44–39) Gymnastics Women's artistic individual floor exercise – Tay Xi Hui Nicole Women's artistic team – Lee Wen Ling, Lee Wen Si, Lim Heem Wei, Nur Atikah Nabilah Binte Muhammad Jufrie, Tay Jia Hui Tabitha, Tay Xi Hui Nicole Pencak silat Men's tanding class H – Mohd Imran (defeated Indonesia 5–0) Sailing Men's 420 open – Xu Yuan Zhen and Wong Ming Ho Justin Men's 420 boys – Teo Wee Chin and Terence Koh Men's laser – Soh Khyan Tat Maximillian Men's laser radial – Lo Man Yi Women's 420 girls – Tam Shiu Wun Siobhan and Liu Xiaodan Dawn Women's 470 women – Toh Liying and Tok Lee Ching Women's optimist girls – Griselda Khng Shooting Men's trap – Choo Choon Seng Men's trap team – Choo Choon Seng, Kwa Eng Cheong Michael, Lee Wung Yew Men's double trap – Mohd Zain Amat (173) Table tennis Men's doubles – Cai Xiaoli and Yang Zi (defeated Indonesia 3–0) Men's team – Cai Xiaoli, Clarence Lee, Henry Seah, Jason Ho, Yang Zi (defeated Vietnam 3–2) Women's singles – Zhang Xueling (defeated Singapore) Women's doubles – Li Jiawei and Zhang Xueling (defeated Indonesia 3–0) Women's team – Jenn Lim, Li Jiawei, Tan Paey Fern, Yan Xu, Zhang Xueling (defeated Thailand 3–1) Mixed doubles – Yang Zi and Zhang Xueling (defeated Singapore 3–1) Triathlon Men's 1.5 km Swim, 40 km Bike, 10 km Run – Cheng Jing Hean (1:58:41.14) Wushu Taijiquan (taijijian) – Goh Qiu Bin (18.56)

Silver Aquatics Men's 100 m backstroke – Chay Jung Jun Mark (heats: 1:00.69, finals: 58.49) Men's 200 m backstroke – Tan Lee Yu Gary (heats: 2:10.15, finals: 2:07.26) Women's 50 m freestyle – Ho Shu Yong (heats: 1:08.20, finals: 26.61) Women's 800 m freestyle – Quah Ting Wen (heats: 1:00.69, finals: 9:02.20) Women's 100 m breaststroke – Nicolette Teo (heats: 1:13.89, finals: 1:11.80) Women's 200 m individual medley – Nicolette Teo (2:22.86) Women's 400 m individual medley – Bernardette Lee (heats: 5:05.32, finals: 5:00.27) Women's 4 × 100 m freestyle relay – Ruth Ho, Ho Shu Yong, Lynette Ng, Joscelin Yeo (3:55.53) Women's 4 × 200 m freestyle relay – Ho Shu Yong, Mylene Ong, Quah Ting Wen, Joscelin Yeo (8:34.75) Athletics Women's Shot put – Du Xianhui: 17.37m Badminton Women's team – lost to Thailand 2–3 Billiards and Snooker Men's snooker doubles – E Boon Aun Keith and Puan Yi Wei Alex: lost to Thailand 1–3 Women's 8-Ball Pool Singles – Hoe Shu Wah Bowling Men's singles – Remy Ong Women's singles – Tan Shi Hua Jazreel (3689) Golf Men's team – Choo Tze Huang, Goh Kun Yang, Leong Kit Wai and Quek Peng Xiang Gymnastics Women's artistic individual balanced beam – Tay Jia Hui Tabitha (7.96) Women's artistic individual uneven bars – Tay Xi Hui Nicole (7.937) Rowing Men's single sculls – Elsie Lim Pencak Silat Men's tanding class G – Abdul Kadir Men's tanding class I – Mohd Yusoff (lost to Vietnam 1–4) Women's regu – Fatmah Abdul Halid, Raden Mas and Nor Dianawati Sailing Men's Hobie 16 – Huang Jinjie Melcom and Chung Pei Quan Men's optimist Boys – Lee Teik Ren Sean Shooting Men's practical pistol – Chow Wei An Men's practical pump shotgun – Lawrence Wee Men's trap – Lee Wung Yew Women's 10m air rifle – Vanessa Yong Table tennis Women's singles – Li Jiawei (lost to Singapore) Mixed doubles – Cai Xiaoli and Li Jiawei (lost to Singapore 1–3) Wushu Qiangshu – Khor Poh Chin (9.2)

Bronze Archery Women's individual compound – Maryanne Gul (defeated Myanmar 107–104) Aquatics Men's 50 m freestyle – Kwok Ying Wah Leslie (heats: 23.88, finals: 23.58) Men's 100 m freestyle – Tay Zhi Rong Bryan (heats: 53.12, finals: 52.38) Men's 200 m backstroke – Cheah Mingzhe Marcus (heats: 2:11.05, finals: 2:08.50) Men's 200 m butterfly – Tan Lee Yu Gary (heats: 2:06.37, finals: 2:04.82) Men's 200 m freestyle – Tay Zhi Rong Bryan (heats: 2:02.14, finals: 1:54.39) Men's 200 m individual medley – Tan Lee Yu Gary (heats: 1:18.27, finals: 2:08.01) Men's 400 m individual medley – Lee Jiann Yow Lionel (heats: 4:41.11, finals: 4:32.58) Women's 100 m butterfly – Tao Li (heats: 1:04.15, finals: 1:01.53) Women's 200 m butterfly – Bernardette Lee (heats: 2:20.02, finals: 2:18.81) Women's 400 m freestyle – Quah Ting Wen (heats: 4:26.98, finals: 4:24.75) Women's 400 m individual medley – Quah Ting Wen (heats: 5:04.09, finals: 5:01.57) Athletics Men's 4 × 100 m freestyle relay – Erzalmaniq Fawy Rawi, Mohd Shameer Mohd Ayub, Poh Seng Song, UK Shyam (reserves: Muhd Firdaus Bin Juhari, Sim Chee Hao Alfred): 40.59s, awarded third position after Indonesia was disqualified Men's Shot put – Wong Tuck Yim James: 12.66m Women's Discus – Zhang Guirong: 48.62m Women's Javelin – Zhang Guirong: 48.70m Billiards and Snooker Men's 8-Ball Pool Singles – Tey Choon Kiat Men's 8-Ball Pool Doubles – Chan Keng Kwang and Tey Choon Kiat (defeated Brunei Darussalam 9–6) Men's 9-Ball Pool Doubles – Chan Keng Kwang and Toh Lian Han (defeated Thailand 11–8) Women's 8-Ball Pool Singles – Chai Zeet Huey Charlene (defeated Indonesia 9–6) Women's 9-Ball Pool Singles – Hoe Shu Wah (defeated ?) Bodybuilding 55 kg – Ng Han Cheng Vincent Bowling Men's team of 5 – Goh Heng Soon Sam, Kwang Kok Leong, Lee Yu Wen, Remy Ong, Tan Siong Kooi Terence and Yeong Nathan Jason (6385) Women's team of 5 – Chan Lu Ee Evelyn, Kwang Tien Mei, Tan Bee Leng, Tan Shi Hua Jazreel, Tay Hong Keow and Teng Pei Ling Rena (6186) Chess Men's Rapid Chess – Goh Koon Jong Jason Men's Rapid Chess Team – Goh Koon Jong Jason, Goh Wei Ming, Wong Meng Kong, Wu Shaobin: Round 1: Bye, Round 2: defeated Myanmar 2.5 to 1.5, Round 3: defeated Indonesia 3 to 1, Semi finals: lost to the Philippines 1.5 to 2.5 Men's Standard Chess – Goh Wei Ming Fencing Men's Épée Team – Ang Chez Yee, Fang Kuo Wei Nicholas, Leong Kok Seng and Lin Qinghui (lost to Thailand 36–44) Women's Sabre – Lim Yean Hong Nona Golf Men's singles – Choo Tze Huang Karatedo Men's individual kumite (open weight) – Lee Chia Jun: defeated Thailand 6–3 Women's individual Kata – Ng Pei Yi Pencak Silat Men's tanding class A – Mohd Asadullah (lost to Indonesia 0–5) Men's tanding class D – Mohd Saifullah (drew with Malaysia 5–5) Men's tanding class F – Mohd Iswandy (lost to Vietnam 0–5) Women's artistic singles – Norishah binte Anuar Women's tanding class A – Nur As'Ashikeen binte Amran (lost to Myanmar 1–4) Women's tanding class B – Saiedah binte Said (lost to Vietnam 0–5) Women's tanding class D – Zuhrah Sabri (lost to Vietnam 0–5) Petanque Women's singles – Heo Boon Huay Vicki (lost to Thailand 10–13) Women's pairs – Goh Heoi Bin and Heo Boon Huay Vicki (lost to Thailand 8–13) Rowing Men's Lightweight Single Sculls – Roozaimy bin Omar Sailing Men's 470 Men – Tay Jun Hao Roy and Chung Pei Ming Men's Formula – Sailboard – Tan Wearn Haw Shooting Men's 10m air rifle – Zhang Jin Men's 50m Free Pistol – Poh Lip Meng Men's practical semi-auto shotgun – Tan Guan Hua Women's 10m air rifle – Zhang Jingna Women's skeet – Ng Swee Theng (78) Table tennis Men's singles – Yang Zi (lost to Indonesia 2–4) Women's doubles – Yan Xu and Tan Paey Fern (lost to Indonesia 2–3) Triathlon Women's 1.5 km Swim, 40 km Bike, 10 km Run – Ng Xinyi Alisa (2:21) Wushu Duilian – Deng Yingzhi (9.13) Taijiquan (taijijian) – Shen Pinxiu (18.36)

Results by event

Archery

Men's individual recurve Loh Wen Liang (Long Distance Qualifiers: 592; Short Distance Qualifiers: 1243; Elimination Round 1/16: defeated Thailand 157–153; lost to Malaysia 154–162) Ong Chee Bin (Long Distance Qualifiers: 567; Short Distance Qualifiers: 1219; Elimination Round 1/16: defeated Indonesia 157–144; lost to Thailand 159–162) Soh Wee Peng (Long Distance Qualifiers: 528; Short Distance Qualifiers: 1156; Elimination Round 1/16: defeated the Philippines152–148) Woo Wei Leong (Long Distance Qualifiers: 569; Short Distance Qualifiers: 1202; Elimination Round 1/16: lost to Indonesia 152–153)

Men's individual compound Lee Siak Wan Ray (Long Distance Qualifiers: 642; Short Distance Qualifiers: 1316; Elimination Round 1/16: lost to Thailand 161–167) Heng Fook Hup Vinson (Long Distance Qualifiers: 649; Short Distance Qualifiers: 1320, seventh position; Elimination Round 1/16: lost to Thailand 158-1597) Kwong Kok Fong Eugene (Long Distance Qualifiers: 630; Short Distance Qualifiers: 1319; Elimination Round 1/16: defeated Malaysia 169–159; Elimination Round 1/8: lost to Myanmar 156–161) Ong Chong Soon Michael (Long Distance Qualifiers: 646, ninth position; Short Distance Qualifiers: 1322; Elimination Round 1/16: defeated Thailand 164–147; Elimination Round 1/8: lost to Myanmar 161–164)

Women's individual compound Lee Bee Teng Shirlene (Long Distance Qualifiers: 634; Short Distance Qualifiers: 1300; Elimination Round 1/16: defeated Vietnam 149–128; Elimination Round 1/8: lost to Singapore 153–171) Maryanne Gul (Long Distance Qualifiers: 660; Short Distance Qualifiers: 1328; Elimination Round 1/16: Bye; Elimination Round 1/8: defeated Singapore 171–153; Elimination Round 1/4: defeated the Philippines 105–100; Quarter-Finals: lost to the Philippines 99–114; Bronze Medal Match: defeated Myanmar 107–104. Finished third position) Leong Yoke Sim Janie (Long Distance Qualifiers: 627; Short Distance Qualifiers: 1283; Elimination Round 1/16: defeated Vietnam 158–151; Elimination Round 1/8: lost to Thailand 155–163)