Jana Berezko-Marggrander (Russian: Яна Березко-Маргграндер, born 17 October 1995 in Tolyatti, Samara Oblast, Russia) is a German retired individual rhythmic gymnast.

Berezko-Marggrander moved to Germany with her family in 2008 and started training on the federal base in Fellbach with coach Galina Krylenko.

She won three bronze medals at the 2010 European Junior Championships in the team event and in the ball and hoop finals.

She also represented Germany and competed at the 2010 Youth Olympic Games where she won the all-around bronze medal.

Berezko-Marggrander competed as a senior at the 2011 European Championships in Minsk, Belarus with teammate Laura Jung and helped Germany finish 11th in the Team event finals.

She then competed at the 2013 World Cup Final in St.Petersburg, Russia where she finished 9th in all-around behind Azeri gymnast Lala Yusifova.

On September 22–28, Berezko-Marggrander competed at the 2014 World Championships but did not reach the all-around finals finishing in 28th place in qualifications.

Berezko-Marggrander finished 10th in all-around at the 2015 Grand Prix Berlin with a total of 69.650 putting her ahead of Katsiaryna Halkina.

On September 9–13, Berezko-Marggrander competed at the 2015 World Championships in Stuttgart, she qualified for the All-around finals finishing in 19th place.