Anastasiia Nikolayevna Bagiian (; born 19 October 2001) is a Russian visually impaired para cross-country skier. She represented Russia at the 2026 Winter Paralympics and won three gold medals.
Bagiian was born on 19 October 2001 in Perm. Blind since 15, she trained at a sports-adaptive school from 17 and began cross-country skiing in 2018. She studies at the Chaikovsky State Institute of Physical Culture and trains at KCFK Perm under coach Arkady Turbin; her guide is Sergey Sinyakin.
Bagiian joined the Perm Krai team in 2019 and the Russian Paralympic team in 2021. At the 2022 World Championships, she took bronze in the 1 km sprint, and placed 4th and 6th in other races. Suspended from the 2022 Paralympics due to RPC ban (lifted end 2025), she won the Russian Cup in 2023 and the 5 km free at the 2025 Russian Championship. Overall, she has three Russian titles and five Russian Cup wins, plus two medals at the "We are together. Sport" Games.
In January 2026, Bagiian won a World Cup mass-start stage in Finsterau. At the 2026 Winter Paralympics in Milan, she won a gold medal in the visually impaired classic sprint with a time of 3:16.1, guided by Sinyakin, Russia's second gold of the Games. She is also entered in the 10 km and 20 km events. On March 11, 2026, she won her second Paralympic gold medal by winning the 10 km race with a time of 29 minutes 39.7 seconds. Four days later, she won her third gold medal in the 20 km race, finishing in 43 minutes 59.1 seconds.