Date of Birth: 
Place of Birth: Gaziantep, Turkey
About Derya Büyükuncu
- Derya Büyükuncu (pronounced ['de?ja 'byjyc'und?u]; born 2 July 1976) is a six-time Olympic backstroke and butterfly swimmer from Turkey.
- The 1.90 m (6 ft 3 in) tall athlete at 90 kg (200 lb) is a member of Galatasaray Swimming.
- His coach is Zehra Büyükuncu.He participated in six consecutive Summer Olympic Games: 1992 Barcelona, 1996 Atlanta, 2000 Sydney, 2004 Athens, 2008 Beijing, 2012 London.
- He is one of the first two (together with Lars Frölander) swimmers to participate in six Olympic Games.
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