Mariana Radeva Sartori (born 13 January 2011) is a Brazilian rhythmic gymnast of Bulgarian descent. She represents Brazil in international competitions.

Career In November 2024 Sartori competed in the age group (13 years old) at the South American Championships in Santiago, there she won bronze with ribbon, gold with hoop and in teams with Amanda Manente. In December she won gold with 3 ribbons at the Brailian Group Championships.

Junior Sartori debuted as a junior in 2025, being selected to compete with ball and with clubs at the Pan American Championships in Asunción. There she was 16th with ball, 7th with clubs and 4th in teams alongside Sarah Mourão, Anna Julia De Carvalho and Nicolle Zacchia. At the Brazilian Championships she was 5th overall and won gold with ball and silver with clubs. In December she was called up for a national training stage for junior gymnasts.

In early 2026, thanks to her Bulgarian roots as her mother is Bulgarian, she trained in Bulgaria under the guidance of Silvia Miteva who created Sartori's new hoop, ball and clubs routines. In April she competed, in a team along Linda Petersen, in the Sofia Cup, competing, being 13th in teams, 19th with hoop and 33rd with clubs. In May she was selected to compete with ball and with ribbon at the Pan American Championships in Rio de Janeiro, she was 13th with ribbon and won bronze with ball and silver in teams with Amanda Manente, Linda Petersen and Beatriz Vieira.

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