- Country: Italy
- Genres: Drama
- Release: 1976-04-06
- Director: Guido Leoni
- Writers: Luigi Angelo , Guido Leoni , Sandro Leoni
- Language: Italian
- Stars: Sabina Ciuffini , Sabina Ciuffini , Gianfranco De Angelis , Gianfranco De Angelis , Maurice Ronet , Maurice Ronet , Gloria Piedimonte , Gloria Piedimonte , Crippy Yocard , Crippy Yocard , Tom Felleghy
- Runtime: 97 min
- Awards: N/A
- AKA: Oh, mia bella matrigna (India) , Ah benim güzel üvey annem (Turkey) , Oh, mia bella matrigna , Mi bella madrastra (Argentina) , A Minha Bela Madrinha (Portugal, Portuguese Republic) , Oh, My Beautiful Stepmother , Oh, mia bella matrigna (Italy)
- Plot: Dad's new wife, Lalla, is young, very young. Maybe too young. His son Claudio falls in love with her, but there's something wrong with him. He has a complicated relationship with the memory of his mother, who died in a car accident years ago. The two lovers plan a murder, but not of the same person...
- IMDB:tt0131509
Oh, mia bella matrigna Cast · · · ALL
Guido Leoni
Director
Sabina Ciuffini
Lalla
Gianfranco De Angelis
Claudio
Crippy Yocard
Cochi
Gloria Piedimonte
Elvira, the servant
Maurice Ronet
Luigi