Anastasia Diodorova, (Russian: Анастасия Алексеевна Диодорова), is a Paralympic swimmer from Russia competing mainly in category S6 events.
Anastasia competed in both the 2004 and 2008 Summer Paralympics winning a silver medal. In 2004 she competed in the 100m backstroke and 50m butterfly finishing fourth in the final of both events. In 2008 she finished fourth in the final of the 100m backstroke, eighth in the final of the 200m individual medley, in the 50m butterfly she won a silver medal behind Fuying Jiang of China who set a new world record but ahead of Ukraine's Olena Akopyan who had set a world record in the heats that Anastasia swam faster than in the final.