Didi Perego (13 April 1935 – 28 June 1993) was a statuesque Italian actress who appeared in more than 80 films and television shows. She made her film debut in 1959's Death of a Friend. The same year, she starred in perhaps her best-known role as Sofia in Kapò. She won the Silver Ribbon for Best Supporting Actress from the Italian National Syndicate of Film Journalists. She had a major starring role in Mario Bava's Caltiki - The Immortal Monster (Caltiki - il Mostro Immortale) the same year.

She worked steadily, mainly in Italian productions, while later having a supporting role in Sidney Lumet's 1969 film psycho-drama The Appointment. She also appeared in several British television series including The Avengers, Mr. Rose and Man in a Suitcase. Her last screen appearance was in 1992; she died of cancer the following year.