Mongolia competed at the 2009 World Games^[1] in Kaohsiung, Taiwan, from July 16, 2009 to July 26, 2009.

Mongolia at the 2009 World Games
IOC code	MGL
NOC	Mongolian National Olympic Committee
in Kaohsiung, Taiwan 16 July 2009 – 26 July 2009
Competitors	8 in 1 sport
Medals Ranked 25th	Gold 1 Silver 3 Bronze 0 Total 4
World Games appearances
1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2022

Medal	Name	Sport	Event	Date
Gold	Ulambayaryn Byambajav	Sumo	Men's openweight	18 July
Silver	Rentsendorjiin Gantögs	Sumo	Men's lightweight	17 July
Silver	Gankhuyagiin Naranbat	Sumo	Men's heavyweight	17 July
Silver	Selengiin Enkhzayaa	Sumo	Women's lightweight	17 July

Mongolia has qualified to the games four man and four woman. Four man and three man entered main competition. Baljinnyam Baterdene, who was in entry list of women's lightweight and openweight events didn't start in the competition.

Athlete	Event	1/48 finals	1/32 finals	1/48 Repechages	1/32 Repechages	1/16 finals	Quarterfinals	1/16 Repechages	Repechages quarterfinals	Semifinals	Repechages semifinals	Final / BM
		Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Rank
Rentsendorjiin Gantögs[2]	Men's lightweight	N/A				Midat Kurbedinov W	Martin Johansen W	N/A		Sándor Bárdosi L	Takashi Shimako W	El-Sayed Gabr W
	Men's openweight	Howard Gilbert W	Mutoshi Matsunaga L	Bye	Kelly Gneiting L	did not advance
Amartuvshin Tumennasan	Men's middleweight	N/A				Kostiantyn Iermakov W	Ricardo Tadashi Aoyama W	N/A		Katsuo Yoshida L	Ramy Ibrahim L	did not advance
	Men's openweight	Bye	Petar Stoyanov L	did not advance
Ulambayaryn Byambajav	Men's heavyweight	N/A				Drew Weeks W	Mutoshi Matsunaga L	El Sayed El-Azazi W	Haitham Al-Sadi W	N/A	Alan Karaev L	did not advance
	Men's openweight	Bye	Ginji Kochi W	N/A		Tsai Hsien-ming W	Takashi Shimako W	N/A		El Sayed El-Azazi W	N/A	Mutoshi Matsunaga W
Gankhuyagiin Naranbat	Men's heavyweight	N/A				Hany Saleh W	Petar Stoyanov W	N/A		Alan Karaev W	N/A	Takashi Himeno L
	Men's openweight	Andrew Perenara W	Midat Kurbedinov W	N/A		Katsuo Yoshida L	did not advance
Selengiin Enkhzayaa	Women's lightweight	N/A				Supawadee Laenglah W	Stephanie Wong W	N/A		Tamami Iwai W	N/A	Alina Boykova L
	Women's openweight	Bye	Miki Satoyama W	N/A		Edyta Witkowska L	did not advance
Orolzod Bayarsaikhan	Women's middleweight	N/A				Miki Niikawa L	did not advance
	Women's openweight	Lien Pei-ju L	did not advance
Dulmaa Yadmaa	Women's middleweight	N/A				Asano Matsuura L	did not advance
	Women's openweight	Anna Zhigalova L	N/A	Leung Hoi Man W	Miki Niikawa W	N/A		Chen Chia-fan W	Edyta Witkowska L	did not advance