Ekaterina Sergeevna Ananina (Russian: Екатерина Сергеевна Ананина; born 31 January 1982) is a badminton player from Russia. She was the women's doubles champion at the National Championships in 2002 and 2009. Now, she was known as Ekaterina Vikulova. Ananina was prepared to compete at the Beijing 2008 Olympic Games, but she was failed to qualified.