Diana Viktorovna Vishneva (also trans. Vishnyova Russian: Диа́на Ви́кторовна Вишнёва; born 13 July 1976) is a Russian ballet dancer who performs as a principal dancer with the Mariinsky Ballet (formerly the Kirov Ballet).
Vishneva was born in Leningrad, Soviet Union (now Saint Petersburg, Russia) and was trained at the Vaganova Academy of Russian Ballet. While at the Vaganova school, she scored the highest scores known to the school's history. During her last year at the Academy she also trained at the Mariinsky Theatre. Vishneva joined the Mariinsky Ballet Company upon her graduation in 1995. Two prizes at the start of her career at the Mariinsky–the Benois de la Danse and the Golden Sofit helped Vishneva rise up the ranks swiftly. She was promoted to principal in 1996.
Vishneva first appeared with the American Ballet Theatre during its 2003 spring season. She joined the company as a principal dancer in 2005. Vishneva retired from the ABT in 2017.