Jennifer Beth Thompson is an American former competition swimmer and anesthesiologist.
Natalie Anne Coughlin Hall is an American former competition swimmer and twelve-time Olympic medalist. While attending the University of California, Berkeley, she became the first woman ever to swim the 100-meter backstroke in less than one minute—ten days before her 20th birthday in 2002. At the 2008 Summer Olympics, she became the first U.S. female athlete in modern Olympic history to win six medals in one Olympiad, and the first woman ever to win a 100-meter backstroke gold in two consecutive Olympics. At the 2012 Summer Olympics, she earned a bronze medal in the 4×100-meter freestyle relay.
Dana Whitney Vollmer is a former American competition swimmer, five-time Olympic gold medalist, and former world record-holder. At the 2004 Summer Olympics, she won a gold medal as a member of the winning United States team in the 4×200-meter freestyle relay that set the world record in the event. Eight years later at the 2012 Summer Olympics, Vollmer set the world record on her way to the gold medal in the 100-meter butterfly, and also won golds in the 4×100-meter medley relay and 4×200-meter freestyle relay. She won three medals including a gold at the 2016 Summer Olympics in Rio de Janeiro.
Gustavo França Borges is a Brazilian former competitive swimmer. He swam for Brazil in four Summer Olympic Games: 1992, 1996, 2000 and 2004. Borges has won the fourth-most Olympic medals of any Brazilian, with four —one in 1992, two in 1996 and one in 2000—only behind sailors Robert Scheidt and Torben Grael and canoeist Isaquias Queiroz with five, and gymnast Rebeca Andrade with six. He also has eight Pan American Games gold medals, the third-most of any Brazilian and only behind swimmer Thiago Pereira and table tennis player Hugo Hoyama. Borges was Brazil's flagbearer for the Closing Ceremony at the 2004 Summer Olympics.
Fernando de Queiroz Scherer is a Brazilian former international swimmer. He won the bronze medal in the 50-meter freestyle at the 1996 Summer Olympics in Atlanta and another bronze medal four years later in Sydney with the Brazilian relay team in the 4×100-meter freestyle.
Gabrielle Elaine Franco Rose is a Brazilian-American competition swimmer who participated in the 1996 and 2000 Summer Olympics. Rose, a resident of Memphis, Tennessee, competed for Brazil at the 1995 Pan American Games and 1996 Summer Olympics, but later represented the United States starting at the 1999 Pan American Games.
Thiago Machado Vilela Pereira is a retired Brazilian international competition swimmer. One of the greatest swimmers in the history of Brazil, Pereira won the silver medal in the 400-meter individual medley at the 2012 Summer Olympics in London, beating the then-current Olympic champion Michael Phelps. He also broke a world record in the short course 200-meter individual medley, and broke several South American and Brazilian records. During his career, he competed with swimming legends Michael Phelps and Ryan Lochte.
Eileen Mary Coparropa Alemán is a freestyle swimmer from Panama who won a silver and a bronze medal in the women's 50-metre freestyle event at the Pan American Games. Nicknamed "La Sirena de Oro", she represented her native country at three consecutive Summer Olympics, starting in 1996.
Alejandro Bermúdez Tamayo is a retired backstroke and medley swimmer from Colombia. He competed in three consecutive Summer Olympics for his native country, starting in 1992. His best result was 13th place in the Men's 400 metres Individual Medley at the 1996 Summer Olympics in Atlanta, Georgia.
Jorge Luiz Fernandes Leite is a former international freestyle swimmer from Brazil, who participated in three consecutive Summer Olympics for his native country, starting in 1980.
Marcus Laborne Mattioli is a former international freestyle and butterfly swimmer from Brazil, who participated in the 1980 Summer Olympics for his native country. There he won the bronze medal in the men's 4×200-metre freestyle relay event at the 1980 Summer Olympics, alongside Jorge Fernandes, Cyro Delgado, and Djan Madruga.
Felipe Alves França da Silva is a Brazilian breaststroke swimmer, who competed for his country in three Olympic Games.
Fernando Souza da Silva is an Olympic and national record holding swimmer from Brazil. He swam for Brazil at the 2008 Olympics, as a member of the men's 4×100-metre freestyle relay.
Nicholas Araújo Dias dos Santos is a Brazilian competitive swimmer who specializes in freestyle and butterfly sprint events. He swims for Esporte Clube Pinheiros. He swam the 50-metre freestyle at the 2008 Summer Olympics and was a member of the Brazilian 4×100-meter freestyle team at the 2012 Summer Olympics. At the 50-metre butterfly, he is the World Record holder in Short Course, and he was the Americas Record Holder in Long Course.
Guilherme Augusto Guido is a Brazilian backstroke swimmer who specializes in sprint events. He was twice a finalist in the 100 metre backstroke at World Championships
Melissa Franklin Johnson is an American former competitive swimmer and five-time Olympic gold medalist. She held the world record in the 200-meter backstroke from 2012 to 2019. As a member of the U.S. national swim team, she also held the world records in the 4×100-meter medley relay.
Djan Garrido Madruga is a former international freestyle swimmer and former South American record-holder from Brazil. His younger brother Roger Madruga, was also a professional swimmer.
Cyro Marques Delgado is a Brazilian former freestyle swimmer.
Marcelo Chierighini is a Brazilian competitive swimmer. In the 100 metre freestyle, he was an Olympic finalist at the Rio 2016 Games, and four times in a row a finalist at the World Championships in 2013, 2015, 2017 and 2019. In the 4 x 100 metre freestyle relay, he holds a silver medal at the 2017 World Championships.
Roberto Delgado Martillo is an American-Ecuadorian former swimmer who specialized in freestyle and butterfly events. A two-time Olympian, he holds numerous Ecuadorian records in both 100 and 200 m butterfly, and retains his dual resident status to compete internationally for his parents' homeland. While studying in the United States, Delgado has been listed as an all-time Top 10 performer in the 200 m butterfly for the Arizona State Sun Devils.
Ecuador 
