Igors Vihrovs is a Latvian gymnast, who won the gold medal in floor exercise at the 2000 Summer Olympics, and bronze in floor exercise in 2000 European Championships and 2001 World Championships. He was the first Olympic gold medalist for independent Latvia.
Igor Potapovich is a former pole vault athlete from Kazakhstan. Potapovich won his first World Junior Championship in 1986. He won the World Cup in 1992. He also finished second at the 1995 IAAF World Indoor Championships and became the indoor World Champion two years later in 1997.
Igor Vasilyevich Paklin is a retired Kyrgyz athlete who represented USSR and later Kyrgyzstan. He trained at Armed Forces sports society in Frunze.
Ihar Mikalaevich Zhalyazouski or Igor Nikolayevich Zhelezovski or Ihar Mikałajevič Žalazoŭski was a Soviet and Belarusian speed skater.
Ihor Chervynskyy is a Ukrainian swimmer who competes in the freestyle events. At the 2003 World Aquatics Championships he won a bronze medal in the 800 metres, and a silver medal in the 1500 metres.
Igors Kazakevičs is a Latvian race walker.
Igor Korobchinski is a former gymnast that represented the Soviet Union, the Commonwealth of Independent States and Ukraine. In 2016, he was inducted in the International Gymnastics Hall of Fame. Korobchinski competed at the 1992 Summer Olympics and 1996 Summer Olympics.
Igor Viktorovich Lavrov is a Russian team handball player and Olympic champion from 2000 in Sydney.
Igor Shulepov is a Russian volleyball player born in Yekaterinburg who competed in the 1996 Summer Olympics and in the 2000 Summer Olympics. In 1996 he was part of the Russian team which finished fourth in the Olympic tournament. He played all eight matches. Four years later he won the silver medal with the Russian team in the 2000 Olympic tournament. He played all eight matches again.
Ihar Anatol'evich Maystrenka is a Belarusian former rower who competed for the Soviet Union in the 1980 Summer Olympics.
Igor Kravtsov is a Russian rower. He won a gold medal at the 2004 Summer Olympics.
Igor Aleksandrovich Novikov was a Soviet modern pentathlete and Olympic Champion. He competed at the 1956 Summer Olympics in Melbourne, where he won a gold medal in the team competition (together with Aleksandr Tarasov and Ivan Deriuhin. He won a silver medal at the 1960 Summer Olympics in Rome, and he competed at the 1964 Summer Olympics in Tokyo, where he won a gold medal in the team competition, and a silver medal in the individual competition.
Aleksandr Tarasov was a Soviet modern pentathlete and Olympic Champion. He competed at the 1956 Summer Olympics in Melbourne, where he won a gold medal in the team competition (together with Ivan Deryugin and Igor Novikov, and placed eighth in the individual competition.
Igor Anatolyevich Skalin is an Olympic sailor. He won silver medal in the Soling class at 1996 Summer Olympics.
Igor Kollár is a retired male race walker from Slovakia. He is a three-time Olympian.
Igor Hinić is a Croatian former professional water polo player, who was a member of the Croatia national team, that won the silver medal at the 1996 Summer Olympics in Atlanta, and the gold medal at the 2012 Summer Olympics in London.
Igor Vyacheslavovich Turchin is a Russian former fencer, team World champion in 2003. He competed in the individual and team épée events at the 2004 Summer Olympics.
Igor Klimov is a Kazakhstani former wrestler who competed in the 1996 Summer Olympics.
Igor Lisovenko is a Russian sailor. He competed at the 2008 and 2012 Summer Olympics in the Men's Laser class, finishing in 11th and 27th place respectively.
Igor Hernández Colina is a Venezuelan beach volleyball player. He played with Jesus Villafañe at the 2012 Summer Olympics.
Soviet Union 
