A-Z Index: 'Of Unk' to 'Pesadi'
- Of Unknown Origin (1983)
- The Off Season (2004)
- Offerings (1988)
- Office Killer (1997)
- Offspring (1987)
- Offspring (1996)
- Offspring (2009)
- Ofrendas de Medianoche (1981)
- Ogre (2008)
- Ojos de Fuego (1984)
- Ojos de Fuego (1984)
- The Old Dark House (1932)
- The Old Dark House (1963)
- Old Mother Riley Meets the Vampire (1952)
- The Omen (1976)
- The Omen (2006)
- Omen III: The Final Conflict (1981)
- Omen IV: The Awakening (1991)
- Once Bitten (1985)
- Once Upon a Frightmare (1974)
- One Dark Night (1983)
- One Deadly Owner (1974)
- One-Eyed Monster (2008)
- One Missed Call (2004)
- One Missed Call 2 (2005)
- One of Them (2003)
- Onibaba (1964)
- Only a Scream Away (1974)
- Open Graves (2009)
- Open House (1987)
- Opera (1987)
- The Oracle (1985)
- The Oracle (2003)
- Orca: Killer Whale (1977)
- The Order (2003)
- Organ (1996)
- Orgy of the Dead (1972)
- Orloff Against the Invisible Man (1970)
- The Orphan (1979)
- Orphan (2009)
- The Orphanage (2007)
- Os Garotos Perdidos (1987)
- Os Outros (2001)
- Os Vampiros de John Carpenter (1998)
- Oscuridad Total (2000)
- The Other (1972)
- The Other Hell (1980)
- The Others (2001)
- Otis: Deseos Oscuros (2008)
- Otra Película de Miedo (2001)
- Ouija (2003)
- The Ouija Board (2003)
- Out for Blood (2004)
- Out of Mind: The Stories of H.P. Lovecraft (1998)
- Out of the Body (1988)
- Out of the Darkness (1978)
- Outcast (1991)
- The Outing (1987)
- Outpost (2008)
- The Oval Portrait (1973)
- Ozone (1993)
- The Pack (1977)
- The Pact With the Devil (1968)
- Pacto Infernal (2006)
- Pale Blood (1991)
- Pandemonium (1988)
- Panic (1983)
- Panic on the Trans-Siberian Express (1972)
- The Paperboy (1994)
- Parada Mortal (2006)
- Paranoiac (1963)
- Paranormal Activity (2008)
- Parasite (2003)
- Parasite Eve (1998)
- Parasomnia (2008)
- Parts of the Family (2003)
- Party Crasher (2000)
- Party Crasher: My Bloody Birthday (2000)
- The Passage (2007)
- Passed the Door of Darkness (2008)
- The Passion of Evelyn (1975)
- The Path of Evil (2005)
- Patrick (1978)
- Peeping Tom (1960)
- Películas Para No Dormir 01: La Habitación del Hijo (2006)
- Películas Para No Dormir 02: Cuento de Navidad (2005)
- Películas Para No Dormir 03: La Culpa (2006)
- Películas Para No Dormir 04: Regreso a Moira (2006)
- Películas Para No Dormir 05: Adivina Quién Soy (2006)
- Películas Para No Dormir 06: Para Entrar a Vivir (2006)
- Penny Dreadful (2006)
- The People Across The Lake (1988)
- The People Under the Stairs (1991)
- Perfect Creature (2006)
- A Perfect Getaway (2009)
- Perkins 14 (2009)
- Persecution (1974)
- Perturbados (1998)
- Pervert! (2005)
- Pesadilla (2005)
