Afghanistan sent a delegation to compete at the 2004 Summer Olympics in Athens, Greece, which were held from 13 to 29 August 2004. This was the eleventh appearance of the nation in the Summer Olympics and their first since their reinstatement to the International Olympic Committee in 2003 following a four-year ban due to the Taliban government's discrimination against women and their opposition to them playing sports. The delegation consisted of five athletes: sprinters Masoud Azizi and Robina Muqimyar, boxer Basharmal Sultani, judoka Friba Rezayee and wrestler Bashir Ahmad Rahmati. Muqimayar and Rezayee's inclusion in the Afghan delegation marked the first time the country sent a woman athlete to a Summer Olympics. All five failed to progress any further than the preliminary round of their respective sports and Afghanistan's best performance at the Games was by Muqimayar who set a new national women's 100 metre record in her heat.
Georgia competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. Georgian National Olympic Committee (GNOC) sent the nation's smallest delegation to the Games since the post-Soviet era. A total of 32 athletes, 26 men and 6 women, competed in 10 different sports.
Uzbekistan competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's third consecutive appearance at the Olympics. The National Olympic Committee of the Republic of Uzbekistan sent a total of 70 athletes to the Games, 52 men and 18 women, to compete in 13 different sports, tying its delegation record with Sydney four years earlier. There was only a single competitor in road cycling, artistic and trampoline gymnastics, and table tennis.
North Macedonia competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's third consecutive appearance at the Summer Olympics in the post-Yugoslav era.
Kyoko Hamaguchi is a Japanese freestyle wrestler. She has won five FILA Wrestling World Championships and two Olympic Bronze medals in the 72 kg weight class.
Augusto Midana is a freestyle wrestler from Guinea-Bissau who competes in the men's middleweight (-74 kg) category. He represented Guinea-Bissau in the 2008 Summer Olympics in Beijing, China, and was the flagbearer for his nation during the opening ceremonies of those games. He competed again at the 2012 Summer Olympics, finishing in 7th place.
Maria McQueen Dunn is a freestyle wrestler from Guam. She participated in Women's freestyle 63 kg at 2008 Summer Olympics losing to Elina Vaseva. She also competed in the same division at the 2012 Summer Olympics, and lost to competitor Lubov Volosova. Maria Dunn has won ten Oceania Championships in women's freestyle wrestling.
Guinea-Bissau competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's fifth consecutive appearance at the Olympics.
Tsogtbazaryn Enkhjargal is an amateur Mongolian freestyle wrestler, who competed in the women's flyweight category. Between 2001 and 2011, Enkhjargal had won a total of six medals for the 46, 48, and 51 kg classes at the Asian Wrestling Championships. She also captured three bronze medals in the same division at the Asian Games, and at the 2005 World Wrestling Championships in Budapest, Hungary.
Roshendra Julienne Mercedes Vrolijk is an Aruban former swimmer, who specialized in sprint freestyle events. She is one of Aruba's first Olympic swimmers, alongside Davy Bisslik, and also a two-time Olympian.
Angélique Berthenet-Hidalgo is a French retired amateur freestyle wrestler, who competed in the women's flyweight category. Considering one of the world's top female freestyle wrestlers in her decade, Berthenet has claimed a silver medal in the 47-kg division at the 1996 World Wrestling Championships in Sofia, Bulgaria, produced a staggering tally of five medals at the European Championships, and offered a chance to represent her country France at the 2004 Summer Olympics. Throughout her sporting career, Berthenet trained full-time for Dammarie Sport Wrestling Club, under her personal coach Ryszard Chelmowski.
Brigitte Wagner is a retired amateur German freestyle wrestler, who competed in the women's flyweight category. Considering one of the world's top female freestyle wrestlers in her decade, Wagner has claimed a gold and a silver medal in the 48-kg division at the World Championships, and seized an opportunity to compete for Germany at the 2004 Summer Olympics. Throughout her sporting career, Wagner trained full-time as a member of the wrestling squad for Siegfried Sports Club in Hallbergmoos, under her coach and four-time Olympian Jürgen Scheibe.
Lyndsay Belisle is a retired amateur Canadian freestyle wrestler, who competed in the women's flyweight category. Considering one of the world's top female freestyle wrestlers in her decade, Belisle has claimed two silver medals each in the 48 and 51-kg division at the 2003 Pan American Games in Santo Domingo, Dominican Republic, and at the 2006 World Wrestling Championships in Guangzhou, China, and seized an opportunity to compete for Canada at the 2004 Summer Olympics. Throughout her sporting career, Belisle trained full-time for the Burnaby Mountain Wrestling Club in Burnaby, British Columbia under her personal coach Mike Jones.
Mabel Fonseca Ramírez is a retired amateur Puerto Rican freestyle wrestler, who competed in the women's lightweight category. She produced a remarkable tally of four career medals; three of them were bronze from the Pan American Games and World Championships and a silver in the 59-kg division from the 2006 Central American and Caribbean Games. Fonseca also had an opportunity to represent Puerto Rico at the 2004 Summer Olympics, but her participation had been marred by a disqualification for failing the doping test. Throughout her sporting career, Fonseca trained as a member of the women's wrestling team for Esporto San Juan under her personal coach Reinaldo Jimenez.
Sofia Poumpouridou is a retired amateur Greek freestyle wrestler, who competed in the women's lightweight category. Considered one of Europe's top female freestyle wrestlers in her decade, Poumpouridou has yielded a remarkable tally of six career medals, including two golds from the 2001 Mediterranean Games and 2002 World Wrestling Championships. She also had an opportunity to represent the host nation Greece at the 2004 Summer Olympics in Athens, finishing eleventh in the process. Throughout her sporting career, Poumpouridou trained full-time for Ephiridai Wrestling Club in Athens, under her personal coach Andreas Hristodoulakis.
Sara Anne Eriksson is a retired amateur Swedish freestyle wrestler, who competed in the women's middleweight category. Considered one of the world's top female wrestlers of her decade, Eriksson has yielded a remarkable tally of fourteen career medals, including two golds at the World Championships and three more at the European Championships. She also had an opportunity to compete for Sweden at the 2004 Summer Olympics, finishing tenth in the 63-kg division. Before her sporting career ended shortly after the Games, Eriksson trained as a member of the wrestling team for Örgryte Sporting Club in Gothenburg, under her personal coach and husband Pierre Dikanda.
Lidiya Karamchakova is a retired amateur Russian-Tajikistani freestyle wrestler, who competed in the women's flyweight category. Karamchakova's wrestling career emerged with two career medals at the European Championships, before acquiring a dual citizenship to compete for Tajikistan in 2002. Since then, she scored a silver in the 48-kg division at the 2002 Asian Games in Busan, South Korea, and also finished seventh at the 2004 Summer Olympics. Karamchakova is also a member of the Viktor Wrestling Club in Krasnoyarsk, under her personal coach Viktor Raiko.
Fadhila Louati is a retired amateur Tunisian freestyle wrestler, who competed in the women's flyweight category. Considered one of the nation's top wrestlers in her decade, Louati has yielded a record of three gold medals in her career at the All-Africa Games, and at the 2001 Mediterranean Games in Tunis. She also had an opportunity to represent her nation Tunisia in the 48-kg division at the 2004 Summer Olympics, finishing fourteenth in the process. Louati is also a member of the wrestling squad for Centre Intégré de Radès in her native Tunis, under her personal coach Noureddine Mefri.
Guinea-Bissau competed at the 2016 Summer Olympics in Rio de Janeiro, from August 5 to 21, 2016. It was the nation's sixth consecutive appearance at the Summer Olympics.
Taciana Rezende de Cesar Baldé is a Brazilian born Bissau-Guinean judoka. She competed at the 2016 Summer Olympics in the women's 48 kg event, in which she was eliminated in the second round by Galbadrakhyn Otgontsetseg She was the flag bearer for Guinea-Bissau during the closing ceremony.
