David John O'Connor is a retired equestrian who represented the United States in the sport of three-day eventing. He competed in two Olympic Games, winning a team silver at the 1996 Summer Olympics and an individual gold and team bronze at the 2000 Summer Olympics. At the 1999 Pan American Games, O'Connor took an individual silver and team gold and at the 2002 World Equestrian Games he assisted the US team to gold. After his retirement from competition in 2004, he became involved in the administrative side of international eventing. O'Connor has held top coaching roles for the US and Canadian national eventing teams, and was president of the United States Equestrian Federation from 2004 to 2012. During his career, O'Connor and his horses were awarded many honors, including equestrian and horse of the year awards from several organizations. In 2009, he was inducted to the United States Eventing Association's Hall of Fame, and two of his horses have been granted the same honor. O'Connor is married to fellow international event rider Karen O'Connor, and the pair operate two equestrian training facilities in the eastern United States.
Theodora Elisabeth Gerarda "Anky" van Grunsven is a Dutch dressage champion who is the only rider to record three successive Olympic wins in the same event. Along with her Olympic successes, she has won numerous medals at the World Equestrian Games (WEG), and is the only rider to have competed at every WEG since they began in 1990. Between 1990 and 2006, she competed at the Games in dressage, but in 2010 she was named as part of the Dutch reining team, marking a major change in discipline.
Canada competed at the 1968 Summer Olympics in Mexico City, Mexico, held from 12 to 27 October 1968. 139 competitors, 111 men and 28 women, took part in 124 events in 14 sports. It is the inaugural Summer Olympics where the Canadian team marched under the new Maple Leaf flag. The youngest competitor for Canada was gymnast Theresa McDonnell who was 14 years old. The oldest competitor was equestrian Zoltan Sztehlo who was 46 years old.
Rebecca Lauren Downie is a British artistic gymnast who competed at the 2008, 2016, and 2024 Summer Olympics. She is a double European champion and 2014 Commonwealth Games champion on the uneven bars as well as the 2019 World silver medallist.
Isabell Werth is a German equestrian and world champion in dressage who competed in the Olympics seven times winning fourteen medals, eight of them gold. With this she beat Aladar Gerevich, Hungarian fencer and Mark Todd of New Zealand, record for the most years between first and last Olympic medals. She holds the record for the most Olympic medals won by any equestrian athlete and by any German athlete, and is the first athlete to win a medal at seven different Olympic Games editions.
Jade Fernandes Barbosa is a Brazilian artistic gymnast. She is a two-time individual bronze medalist at the World Championships, and represented Brazil at the 2008, 2016, and 2024 Olympic Games. She was part of the historic teams that won silver at the 2023 World Championships and bronze at the 2024 Olympic Games.
Yvonne Losos de Muñiz is an Olympic athlete and international Grand Prix dressage rider. Born in Nigeria to Canadian parents, she represents the Dominican Republic internationally. She belongs to the elite Dominican Olympic athlete program CRESO.
Ingrid Klimke is a German eventing rider. She appeared at five Olympics from 2000 to 2016. With her horse Abraxxas, she won two gold medals in team eventing at the 2008 Summer Olympics and the 2012 Summer Olympics. At the 2016 Summer Olympics, she won a team silver with Hale-Bob.
Edwina Tops-Alexander is an Australian showjumper known for her participation in three Olympics, finishing in the top ten twice. She is the first Australian to place in the top 10 at the World Equestrian Games and the first rider to earn more than €1 million in prize money on the Global Champions Tour. She is Australia's most decorated female equestrian.
Canada, represented by the Canadian Olympic Committee (COC), competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. Canadian athletes have competed in every Summer Olympic Games since 1900, except the 1980 Summer Olympics in Moscow because of the country's support for the United States-led boycott. Canada sent a total of 281 athletes to the Games to compete in 24 sports. With the initiation of its "Own the Podium" programme, the COC set a goal of finishing in the top 12 for total medals; but the nation came up short of this goal, finishing 13th in the medal standings. Canada matched its total medal count from Beijing 2008, finishing the event with 18 medals: two gold, six silver and 10 bronze.
Christilot Hanson-Boylen is a Canadian equestrian who competed as a member of the Canadian Equestrian Team in Dressage at six Olympic Games.
Jessica Phoenix is a Canadian Equestrian Team athlete in eventing.
Mary Hanna is an Australian equestrian. She has represented Australia at six Olympic Games in the equestrian discipline of dressage.
Kristy Oatley-Nist is an Australian equestrian. She represented Australia at the 2000, 2008, 2012 and 2016 Summer Olympics in the equestrian discipline of dressage.
Jonelle Price is a New Zealand equestrian, competing in eventing. She is married to Tim Price, also a New Zealand eventing rider. They are both competing at top international level.
Megan Lane is a Canadian Olympic dressage rider. She participated at two World Equestrian Games. Her best results were achieved during the 2014 edition, when she placed 9th with the Canadian team in the team competition, and 37th in the individual competition aboard Caravella.
Belinda Trussell is a Canadian Olympic dressage rider. Representing Canada, she competed at two Summer Olympics. At the 2004 Summer Olympics in Athens, Greece she placed 9th in the team competition and 36th in the individual competition. 12 years later, she achieved 27th position in the individual event.
Adrienne Lyle is an American Olympic dressage rider. Representing the United States, she competed at the 2012 Summer Olympics in London where she finished 37th in the individual competition, and the 2020 Summer Olympics in Tokyo where she was won a silver medal in the team competition. After qualifying for the individual Grand Prix Freestyle at the 2020 Olympics she withdrew from the competition out of concern for her horse, Salvino.
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.
Canada 
