Cambodia competed in the 2009 Southeast Asian Games athletics tournament, winning three gold medals and 40 medals in total.

Preparations Cambodia only announced the formation of its National Team Organizing Committee for the SEA Games in mid-October 2009,Xinhua, Cambodia launches committee to prepare for SEA Games less than two months ahead of the start of the Games in Vientiane, Laos. The National Olympic Committee of Cambodia (NOCC) assigned its Vice President Bun Sok to chair this committee.

This committee was made up of representatives of various Olympic sports federations and was responsible for final screening and selection of athletes to represent Cambodia in various sports. Cambodia was to compete in 17 sports, with expectations of medals in pétanque, athletics, tennis, wrestling, boxing, taekwondo and beach volleyball. As part of the preparation for 2009 SEA Games, the athletics and taekwondo athletes traveled to South Korea to undergo intensive training courtesy of the Incheon City of Korea Support Program, while other athletes were to complete training in Vietnam.

The Phnom Penh Post reported that, according to Nhan Sokvisal, the SEA Games coordinator, Cambodia was looking forward and optimistic to better their medals haul from the last SEA Games in Thailand in 2007. In the 2007 Games, Cambodia won 19 metals - two gold, five silver and 12 bronze.

Cambodian Prime Minister Hun Sen confirmed his presence at the Opening Ceremony after Laotian Prime Minister Bouasone Bouphavanh's visit to Cambodia in late November.PP Post, Briefs: PM to attend SEA Games

Medalists MedalNameSportEvent Sok Chanmean Pétanque Men's Single Heng Than Pétanque Men's Precision Shooting Chov Sotheara Wrestling Women's <45 kg Phal Sophat Boxing Men's Feather Weight - 57 kg Chhoy Bouthorn Taekwondo Men's 58 kg So Naro Taekwondo Men's 87 kg Seon Elit Taekwondo Men's >87 kg Ouk Sreymom Pétanque Women's Single Duong Dina Or Chan Daren Pétanque Mixed Double Heng Tha Songvat Chakriya Ya Chandararith Pétanque Mixed Triple (1 Woman & 2 Men) Chum Chivinn Wrestling Men's 96–120 kg Freestyle Chum Chivinn Wrestling Men's 120 kg Greco-Roman Try Sothavy Wrestling Women's 51–55 kg Hem Bunting Athletics Men's Marathon Ven Diaman Boxing Men's Pin Weight - 45 kg Svay Ratha Boxing Men's Light Welter Weight - 64 kg Hin Saiheng Boxing Men's Welter Weight - 69 kg Eh Phuthong Boxing Men's Light Heavy Weight - 81 kg Chao Ratana Kim Vanna So Randyne Pétanque Men's Triple Ke Leng Duong Dina Pétanque Women's Double Anhsany Dalavanh Mimi Vongsavath Odet Somsouk Pétanque Women's Triple Em Piseth Pétanque Women's Precision Shooting Khem Sopheak Paou Chhouk Rath Un Sreya Pétanque Triple(1 Man & 2 Women) Heng Rawut Shuttlecock Men's Singles Soeur Vanmak Chhin Vitou Shuttlecock Men's Doubles Cambodia Shuttlecock Men's Team Chea Sreymeas Shuttlecock Women's Singles Chea Sreymeas San Sophorn Shuttlecock Women's Doubles Cambodia Shuttlecock Women's Team Chhin Vitou San Sophorn Shuttlecock Mixed Doubles Chieung Puthearim Taekwondo Women's 57 kg Cheang Bunna Taekwondo Women's 62 kg Sorn Davin Taekwondo Women's 73 kg Cheat Khemara Taekwondo Individual Men Poomsae Tan Nysan Tennis Men's singles Dorn Saov Wrestling Men's Freestyle 74–84 kg Dorn Saov Wrestling Men's Greco-Roman 74 kg Chey Channreaksmey Wrestling Women's 48–51 kg Tan Narith Wushu Men's sanshou 52 kg Sin Saksunnara Wushu Men's sanshou 56 kg

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