Sofia Sergeyevna Biryukova is a Russian figure skater. She is the 2013 Winter Universiade champion and 2011 Finlandia Trophy champion.

The 2011 Rostelecom Cup was the final event of six in the 2011–12 ISU Grand Prix of Figure Skating, a senior-level international invitational competition series. It was held at the Ice Palace Megasport in Moscow on November 24–27. Medals were awarded in the disciplines of men's singles, ladies' singles, pair skating, and ice dancing. Skaters earned points toward qualifying for the 2011–12 Grand Prix Final.