Yvonne Losos de Muñiz is an Olympic athlete and international Grand Prix dressage rider that represents the Dominican Republic. She belongs to the elite Dominican Olympic athlete program CRESO.
The equestrian events at the 2020 Summer Olympics in Tokyo featured three disciplines for both individual and team competitions.
Laura Graves is an American dressage rider. She represented the United States at the 2016 Summer Olympics where she won a bronze medal in the team dressage competition. After winning double silver medals at the 2018 World Equestrian Games in Tryon, NC, Laura became the first American dressage rider to be ranked No. 1 in FEI World rankings, aboard her longtime partner Verdades.
Fernanda Russo is an Argentine sport shooter. She won a silver medal in the air rifle at the 2015 Pan American Games, and also shared a runner-up prize with Mexico's José Santos Valdes in the mixed international rifle team at the 2014 Summer Youth Olympics.
Julie Claire Brougham was a New Zealand equestrian, competing in dressage. She became New Zealand's oldest Olympic competitor when she competed at the 2016 Summer Olympics in Rio de Janeiro at age 62.
Kelly Layne is an Australian Dressage rider and trainer. She planned on qualifying to represent her country at the 2016 Summer Olympics in Rio de Janeiro. However, Layne was unable to compete in the final qualifying event due to an injury suffered by her horse, Udon P, forcing her to withdraw. While born in Australia, Layne is currently based in Wellington, Florida. Layne also helped found her own riding team, "Dream Team Dressage".
Brazil competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's twenty-third appearance at the Summer Olympics, having competed in all editions of the modern era from 1920 onwards, except the 1928 Summer Olympics in Amsterdam.
Austria competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Olympic Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's twenty-eighth appearance at the Summer Olympics.
Portugal competed at the 2020 Summer Olympics in Tokyo, from 23 July to 8 August 2021. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed because of the COVID-19 pandemic. Portuguese athletes have appeared in every edition of the Summer Olympic Games since the nation's debut in 1912.
The team of the Olympic Federation of Ireland, which competed at the 2020 Summer Olympics in Tokyo, represented athletes from both the Republic of Ireland and those from Northern Ireland who choose it instead of the Great Britain and Northern Ireland team. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. It was the team's twenty-second appearance at the Summer Olympics, having attended every edition since 1924 except the 1936 Summer Olympics in Germany.
Mexico competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's twenty-fourth appearance at the Summer Olympics. Athletes were given priority for vaccines in March.
Chile competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. Since the nation's debut in 1896, Chilean athletes have appeared in all but five editions of the Summer Olympics of the modern era. Chile did not attend the 1932 Summer Olympics in Los Angeles at the period of the worldwide Great Depression and was also part of the US-led boycott, when Moscow hosted the 1980 Summer Olympics.
Ecuador competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games have been postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's fifteenth appearance at the Summer Olympics, and its most successful to date. The country won its third, fourth, and fifth ever medals, two golds and one silver, respectively, during the games.
The Dominican Republic competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's fifteenth consecutive appearance at the Summer Olympics. The Dominican Republic left the Summer Olympics with 3 silver medals and 2 bronze medals with moderate success, but not able to secure a single gold medal in any of the events.
Tina Irwin is a Canadian dressage rider and coach. She won silver in team dressage at the 2011 Pan American Games in Guadalajara, Mexico. She also won gold in team dressage and a silver in individual dressage at the 2019 Pan American Games in Lima, Peru.
Annabelle Collins is a Bermudian dressage rider. She has qualified to compete at the 2020 Tokyo Olympic Games.
Laurence Roos is a Belgian dressage rider. She competed at the 2018 World Equestrian Games, at two European Dressage Championships, and competed at the 2020 Tokyo Olympic Games, finishing 23rd individually and 10th with the Belgian team.
Tatyana Vladimirovna Kosterina is a Russian dressage rider. She competed at the 2018 World Equestrian Games, multiple European Dressage Championships, and competed as part of the Russian dressage team at the delay Tokyo 2020 Olympic Games.
Rodrigo Moura Torres is a Portuguese dressage rider. He competed at the 2019 FEI European Championships, and competed for the Portuguese team at the 2020 Tokyo Olympics, finished 16th in the individual final and 8th with the Portuguese Team.
Larissa Pauluis is a Belgian Olympic dressage rider. She competed at two World Championships for Young Dressage Horses and competed at the Olympic Games in Tokyo, representing Belgium.
Mexico 
