Obeah (1935)
Oblong Box, The (1969)
Obras maestras del terror (1960)
Of Unknown Origin (1983)
Offerings (1989)
Offspring, The (1986)
Ojos azules de la muñeca rota, Los (1972)
Old Dark House, The (1932)
Old Mother Riley's Ghosts (1941)
Omen IV: The Awakening (1991)
Omen, The (1976)
Once Bitten (1985)
One Dark Night (1983)
Onibaba (1964)
Open House (1987)
Opera (1987)
Operation Phoenix - Jäger zwischen den Welten (1997)
Operazione paura (1966)
Oracle, The (1985)
Organ (1996)
Orgy of the Dead (1980)
Orgía nocturna de los vampiros, La (1972)
Original Vampire (1999)
Orlacs Hände (1924)
Orlak, el infierno de Frankenstein (1960)
Orphan, The (1979)
Orribile segreto del dottor Hichcock, L' (1962)
Orrori del castello di Norimberga, Gli (1972)
Ossessione che uccide, L' (1980)
Other, The (1972)
Ouanga (1935)
Outback Vampires (1987)
Outpost, The (1995)
Overnight Stay, An (1989)
Ozone (1993)