Diana Maximovna Shnaider (Russian: Диа́на Макси́мовна Шна́йдер; Russian pronunciation: ; born 2 April 2004) is a Russian professional tennis player. She has career-high rankings in singles of world No. 60, achieved on 23 October 2023, in doubles of No. 135 achieved on 29 January 2024. She played college tennis for North Carolina State. Shnaider won her first WTA title at the 2024 Thailand Open.