Iván Ernesto Pérez Vargas is a water polo player from Spain. He was born in Havana, Cuba, but became a Spanish citizen. He was a member of the national team that finished in sixth place at the 2004 Summer Olympics in Athens, Greece. He also competed at the 2008 and 2012 Olympics. He represented Cuba at the 1992 Summer Olympics.
Uruguay competed at the 1936 Summer Olympics in Berlin, Germany. 37 competitors, all men, took part in 15 events in 6 sports.
Ivan Aleksandrovich Skobrev is a Russian speed skater.
The Kingdom of Yugoslavia competed at the 1936 Summer Olympics in Berlin, Germany. 93 competitors, 78 men and 15 women, took part in 59 events in 13 sports.
Ivan Kizimov was a Soviet and Russian equestrian and Olympic champion. He was born in Novocherkassk. He won an individual gold medal in dressage at the 1968 Summer Olympics in Mexico City, and a gold medal in team dressage at the 1972 Summer Olympics in Munich. He won a bronze medal in individual dressage at the 1970 Dressage World Championship, and team medals in 1966 (bronze), 1970 (gold) and 1974 (silver). He also won eight medals in total at the European Dressage Championships, five silver and three bronze medals.
Zsuzsanna "Zsu" Jakabos is a Hungarian swimmer. She competed at the 2004, 2008, 2012 and 2016 Olympics in seven events in total, with the best achievement of sixth place in the 4 × 200 m freestyle relay in 2008 and 2016.
Iván Rodríguez Padilla was a Puerto Rican sprinter who competed in the 1956 Summer Olympics and in the 1960 Summer Olympics. He was born in Yauco, Puerto Rico. He finished third in the 1959 Pan American Games 4×400 metres Relay. In the 1959 Pan American Games 400 metres Rodríguez finished fifth.
Niall Roberts is a Guyanese swimmer of Portuguese descent. He competed at the 2008 Summer Olympics. Roberts came 7th in his heat. He also qualified to compete at the 2012 Summer Olympics in London and at the 2013 World Aquatics Championships in Barcelona.
Ivan Mráz was a Czechoslovak football player and manager. A forward, he competed in the 1964 Summer Olympics and won the silver medal. Scored five goals in that Olympics Football Tournament. Besides Czechoslovakia, he played in the Netherlands. Mráz later suffered from Alzheimer's disease. He died at Saint Paul's Hospital in Heredia, Costa Rica, on 18 May 2024, at the age of 82, six days before his 83rd birthday.
Iván Gallego is a Spanish water polo player who competed in the 2008 Summer Olympics.
Ivan Buljubašić is a Croatian water polo player. At the 2012 Summer Olympics, he competed for the gold medal-winning Croatian men's national water polo team in the men's event.
Ivan Vitaliyevich Nifontov is a Russian judoka. He won the bronze at the 2012 Summer Olympics in the category men's –81 kg. He carried the Winter Olympic torch before the Sochi Games.
Ivan Markov is a Bulgarian weightlifter competing in the 85 kg category. He is the younger brother of former world champion weightlifter Georgi Markov. He placed fifth at the 2012 Summer Olympics. Markov also qualified for the 2008 Summer Olympics but he was one of eleven Bulgarian weightlifters who tested positive for a banned steroid two months prior to the games. Bulgaria withdrew its whole team from the Olympic competition and Markov received a four-year ban from competition.
Ivan Remarenco is a Moldovan born-Emirati judoka. He competed at the 2012 Summer Olympics for Moldova in the -90 kg event. He moved up in weight category to -100 kg. He represented the United Arab Emirates at the 2014 World Judo Championships and won a bronze medal. He again represented the UAE at the 2016 Summer Olympics.
Ivan Viktorovych Dovhodko is a Ukrainian rower. He competed in the quadruple sculls at the 2012 and 2016 Summer Olympics. He won the gold medal in the quadruple sculls at the 2014 World Rowing Championships in Amsterdam, setting a new world's best time. He has won a gold, two silvers and a bronze in the quadruple sculls at European level.
Louis Cohn "Lou" Scott is an American long-distance runner who competed in the 1968 Summer Olympics. He won a silver medal at the 1967 Pan American Games.
Michael Aish is a New Zealand long-distance runner. He competed at the 2004 Summer Olympics in Athens, in the men's 5000 metres. He is a prolific runner with a 2:13:21 personal best time in the marathon. He was formerly married to woman's U.S. Marathon Champion Nicole Aish and is presently married to long-distance runner Christy Burns.
Harold Boyce Budd Jr. is a retired American competition rower who won a gold medal in the eights at the 1964 Olympics.
Rade Sunara was a Croatian rower. He competed in two events at the 1936 Summer Olympics.
Francisco Sunara was a Uruguayan rower. He competed in the men's coxed four at the 1936 Summer Olympics.
