Stefania Careddu (born 13 January 1945) is an Italian retired film and stage actress.

Born in Bergamo, Careddu is the daughter of the writer Marianna Frigeni. She made her film debut in 1965, in a small role in Gianni Puccini's I soldi, and the following year she had her first role of weight in Nelo Risi's Andremo in città. After several supporting roles, including some Spaghetti Westerns in which she was credited as Kareen O'Hara, Careddu retired from acting.