Igor Polyanskiy is a triathlete who has competed for Russia and ROC.
He competed at the 2016 and 2020 Summer Olympic Games. At his second Games in 2020, he finished forty-third in men's triathlon and helped the Russian team secure a fourteenth spot in the mixed relay, but he was disqualified for a doping violation.
He is the younger brother of four-time Olympic triathlete Dmitry Polyanskiy.