Harmonia
- Tahun: 1970
- Negara: United Kingdom, United States of America
- Genre: Drama, Thriller
- Studio: Embankment Films, New Native Pictures, Sight Unseen Pictures
- Kata kunci: cult, based on true story, 1980s
- Pengarah: Guy Nattiv
- Pelakon: Naomi Watts, Vicky Krieps, Odessa Young, Bella Ramsey
