Ekaterina Alexeyevna Ryabova (Russian: Екатерина Алексеевна Рябова; born 27 March 2003) is a retired Russian-Azerbaijani figure skater who represented Azerbaijan in women's singles.

[5] Ryabova made her international debut for Azerbaijan in September 2018 at the ISU Junior Grand Prix (JGP) in Kaunas, Lithuania.

[5] Making her senior international debut, Ryabova won gold in October at the 2018 Minsk Arena Ice Star, outscoring the silver medalist, France's Léa Serna, by about nine points.

[5] In March 2019, at the 2019 World Championships, Ryabova placed seventeenth in the short program and qualified to the free skate.

She was fifth as well at the Denis Ten Memorial Challenge before winning the bronze medal at the 2019 CS Ice Star and silver at the Volvo Open Cup.

[9] In December, she left coaches Evgeni Plushenko and Alexander Volkov, citing being "no longer satisfied with the training conditions."

[10][11] Ryabova competed at the 2021 World Championships in Stockholm, placing twelfth to qualify for a berth for Azerbaijan at the 2022 Winter Olympics.

[12][13] Ryabova began the Olympic season at the 2021 Budapest Trophy, where she placed fourth, before winning the silver medal at the 2021 Denis Ten Memorial Challenge.

[18] Days after the Olympics concluded, Vladimir Putin ordered an invasion of Ukraine, as a result of which the International Skating Union banned all Russian and Belarusian skaters from competing at the 2022 World Championships.