* The Exorcist (1973)
* Psycho (1960)
* The Shining (1980)
* Rosemary's Baby (1968)
* The Texas Chain Saw Massacre (1974)
* The Blair Witch Project (1999)
* The Conjuring (2013)
* Insidious (2010)
* Hereditary (2018)
* Get Out (2017)
These movies are all considered to be creepy for a variety of reasons, including their unsettling atmosphere, disturbing imagery, and psychological suspense. Some of them are based on real-life events, which can make them even more terrifying. If you're looking for a truly creepy movie experience, any of these titles would be a good choice.
Honorable Mentions
* The Ring (2002)
* The Grudge (2004)
* Paranormal Activity (2007)
* Sinister (2012)
* It Follows (2014)
* The Babadook (2014)
* The Witch (2015)
* Lights Out (2016)
* A Quiet Place (2018)
* Midsommar (2019)