Polina Sergeevna Shmatko (Russian: Полина Сергеевна Шматко, born March 26, 2003 in Moscow, Russia) is a Russian individual rhythmic gymnast. She is the 2016 European Junior Clubs, Ball champion and the 2018 European Junior Hoop champion. At national level she is the 2016 Russian Junior all-around silver medalist. She is 2018 European championships gold medalist in team event and in hoop finals. She retired because of health problems. Her father is the politician and entrepreneur Sergei Shmatko, who died on November 7, 2021 as a result of covid-19 disease.