Roman Volodymyrovych Hontyuk (Ukrainian: ????? ????????????? ??????), also spelled Roman Gontyuk, (born 2 February 1984) is a male judoka from Ukraine.
He won a silver medal in the half-middleweight (81 kg) division at the 2004 Summer Olympics and bronze medal in the half-middleweight (81 kg) division at the 2008 Summer Olympics in Beijing.
Hontyuk is the Merited Master of Sports of Ukraine.