Sofia Sergeyevna Thorup (née Prosvirnova (Russian: Софья Сергеевна Просвирнова); 20 December 1997) is a Russian-born Danish short track and long track speed skater.

She competed at the 2014 Winter Olympics in the individual 500 m and 1,000 m events and in the 3,000 meters relay and placed 15th, 24th and 4th, respectively.

[1][2] In April 2023, after marrying Danish speed skater Viktor Hald Thorup, Sofia Prosvirnova announced to switching nationality to represent Denmark, while also leaving short track for long track speed skating.

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