Margarita "Rita" Mamun-Sukhorukova (; born 1 November 1995) is a retired Bangladeshi-Russian individual rhythmic gymnast. She is the 2016 Olympic All-around champion, two-time (2015, 2014) World All-around silver medalist, the 2015 European Games All-around silver medalist, the 2016 European Championships All-around silver medalist, three-time (2015, 2014, 2013) Grand Prix Final All-around champion and a three-time (2011–2013) Russian National All-around champion.