Ecuador competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's tenth consecutive appearance at the Olympics. It had first competed at the 1924 Summer Olympics in Paris.
Bayron Efrén Piedra Avilés is an Ecuadorian middle distance and long-distance runner.
Carlos Paro is an event rider who won a team bronze medal in the 2007 Pan American Games in Rio de Janeiro, Brazil in 2007, a team silver medal in the 2015 Pan American Games in Toronto, Canada and an Individual Bronze and team Silver in the 2019 Pan American Games in Lima, Peru in eventing for Brazil. He has competed in four Olympic games: the 2000 Summer Olympics in Sydney, Australia, the 2016 Summer Olympics in Rio de Janeiro, Brazil, the 2020 Summer Olympics in Tokyo, Japan and the 2024 Summer Olympics in Paris.
Cristian Andrés Chocho León is an Ecuadorian race walker who competes in both the 20 km and 50 km walk events. He is the South American record holder in the 50 km and 20,000 metres walking events.
The individual show jumping in equestrian at the Rio 2016 Summer Olympics was held from 14–19 August. Like all other equestrian events, the jumping competition was mixed gender, with both male and female athletes competing in the same division. There were 74 competitors from 27 nations. The event was won by Nick Skelton of Great Britain, the nation's first victory in individual jumping and first medal of any color since making the podium four consecutive Games from 1960 to 1972. Silver went to Peder Fredricson of Sweden. Eric Lamaze of Canada took bronze, becoming the first person since 1968 and sixth overall to win multiple medals.
Argentina competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's twenty-fourth appearance at the Summer Olympic Games, having missed only three editions since their 1900 debut: the 1904 Summer Olympics in St. Louis, the 1912 Summer Olympics in Stockholm and the 1980 Summer Olympics in Moscow because of its support for the United States-led boycott. The Argentine Olympic Committee sent the nation's largest ever delegation to the Games in Olympic history, surpassing the record set in London 1948.
Switzerland competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Swiss athletes have appeared in every edition of the Summer Olympic Games in the modern era, except for a partial boycott of the 1956 Summer Olympics in Melbourne as a protest to the Soviet invasion of Hungary. The Swiss team consisted of 104 athletes, 59 men and 45 women, across seventeen sports.
Colombia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's nineteenth appearance at the Summer Olympics. The Colombian Olympic Committee sent the nation's largest ever delegation to the Games, with 147 athletes, 74 men and 73 women, competing across 23 sports.
Ecuador competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. It was the nation's fourteenth appearance at the Summer Olympics since its debut in 1924.
Equestrian competitions at the 2015 Pan American Games in Toronto were held from July 11 to 25 at the Caledon Equestrian Park in Palgrave. The cross-country portion of eventing took place at nearby Will O' Wind Farm, which is located in Mono. Due to naming rights the venue was known as the latter for the duration of the games. The competition was split into three disciplines, dressage, eventing and show jumping. Each discipline awarded a team and individual set of medals.
Venezuela competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. It was the nation's eighteenth consecutive appearance at the Summer Olympics.
Uruguay competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil from 5 to 21 August 2016. Since the nation's official debut in 1920, Uruguayan athletes have appeared in every edition of the Summer Olympic Games, with the exception of the 1980 Summer Olympics in Moscow, because of its partial support to the United States-led boycott.
Lenin Preciado is an Ecuadorian judoka. He won a gold medal in men's 60 kg at the 2015 Pan American Games.
Astier Nicolas is a French equestrian. He represented his country at the 2016 Summer Olympics, where he won the gold medal in the team eventing and the silver in the individual eventing.
Neisi Patricia DájomesBarrera is an Ecuadorian weightlifter, who is the 2020 Tokyo 76 kg Olympic Champion, a 6 time Pan American Champion, Pan American Games Champion and a 3 time Junior World Champion. As of 2024, she is the only female Ecuadorian athlete to win multiple Olympic medals. She competed in the 75 kg category until 2018 and 76 kg starting in 2018 after the International Weightlifting Federation reorganized the categories. She is the older sister of Angie Palacios.
Brian Daniel Pintado Álvarez is an Ecuadorian racewalker, two-time Pan American Games champion and two-time Olympic Medallist.
Fernando Fabricio Salas Manguis is an Ecuadorian male weightlifter, competing in the +105 kg category and representing Ecuador at international competitions. He participated in the men's +105 kg event at the 2015 World Weightlifting Championships, and at the 2016 Summer Olympics, finishing in fourteenth position. He won the bronze medal in the same weight category at the 2015 Pan American Games.
Charles Fernandez is a Guatemalan modern pentathlete. He competed at the 2016 Summer Olympics in the men's event and finished fifteenth. Fernandez won the men's modern pentathlon at the 2015 Pan American Games. He also won a gold medal at the World Junior Championships. Fernandez has competed in three World Modern Pentathlon Championships as well as multiple youth and junior world championships and a Central American and Caribbean Games.
Ecuador 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 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.
Ecuador competed at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. It was the nation's sixteenth appearance at the Summer Olympics and, in terms of number of medals, its most successful one.
