Ku Yong-jo was a boxer from North Korea, who won the gold medal in the bantamweight (–54 kg) division at the 1976 Summer Olympics in Montreal, Quebec, Canada. In the final, he defeated American boxer Charles Mooney. In 1980, he competed in the featherweight division and, after receiving a first-round bye, lost his first bout to Krzysztof Kosedowski of Poland.
Zenon Licznerski was a Polish athlete who competed mainly in the 100 metres.
Krzysztof Wojdan is a Polish judoka. He is a 1996 Olympian. He trains UK's Grot Kraków. He competed in the men's lightweight event at the 1996 Summer Olympics.
Krysztof Dariusz Bieryt is a Polish slalom canoeist who competed at the international level from 1990 to 2009.
Krzysztof Marek Kołomański is a Polish slalom canoeist who competed at the international level from 1990 to 2000. Competing in three Summer Olympics, he won a silver medal in the C2 event in Sydney in 2000.
Krzysztof Cwalina is a retired freestyle swimmer from Poland. He competed for his native country at the 1992 Summer Olympics in Barcelona, Spain, finishing in eighteenth place in the men's fifty-meter freestyle event.
Krzysztof Wybieralski is a Polish former field hockey player who competed in the 2000 Summer Olympics.
Łukasz Wybieralski is a Polish former field hockey player who competed in the 2000 Summer Olympics.
Krzysztof Kucharczyk is a Polish former sport shooter who competed in the 1988 Summer Olympics, in the 1992 Summer Olympics, in the 1996 Summer Olympics, and in the 2000 Summer Olympics.
Krzysztof Maciej Zwarycz is a Polish male weightlifter, competing in the 77 kg category and representing Poland at international competitions. He participated at the 2012 Summer Olympics in the 77 kg event. He competed at world championships, most recently at the 2011 World Weightlifting Championships.
Krzysztof Sujka is a Polish former cyclist. He competed at the 1976 Summer Olympics and the 1980 Summer Olympics.
Krzysztof Siemion is a Polish weightlifter. He won the Silver medal in 82.5 Kg in the 1992 Summer Olympics in Barcelona..
Krzysztof Wesołowski is a Polish middle-distance runner. He competed in the men's 3000 metres steeplechase at the 1980 Summer Olympics.
Krzysztof Sieńko is a Polish bobsledder. He competed at the 1998 Winter Olympics and the 2002 Winter Olympics.
Krzysztof Sitkowski was a Polish basketball player. He competed in the men's tournament at the 1960 Summer Olympics and the 1964 Summer Olympics.
Krzysztof Fikiel is a Polish basketball player. He competed in the men's tournament at the 1980 Summer Olympics.
Krzysztof Rojek is a Polish boxer. He competed in the men's heavyweight event at the 1992 Summer Olympics.
Krzysztof Janczak is a Polish volleyball player. He competed in the men's tournament at the 1996 Summer Olympics.
Krzysztof Śmigiel is a Polish volleyball player. He competed in the men's tournament at the 1996 Summer Olympics.
