- Megalomaniac
NR | Horror
- Mayhem (2017)
NR | Action/Horror
- The Marshes (2020)
NR | Horror
- Malum (2023)
NR | Horror
- Mother of Flies
NR | Horror
- The Monster Walks
NR | Horror
- The Monster Maker (1944)
NR | Horror
- The Mad Monster
NR | Horror
- The Midnight Man (2018)
NR | Horror/Thriller
- ManFish
NR | Comedy/Horror
- Mean Spirited (2022)
NR | Comedy/Horror
- The Mortuary Collection (2019)
NR | Horror/Fantasy
- Magic Cop (2003)
NR | Horror
- Medusa (2022)
NR | Horror/Thriller
- Mon Mon Mon Monsters (2017)
NR | Horror/Dark comedy
- The Man Who Became Everything
NR | Horror
- MadS (2024)
NR | Horror/Thriller
- May The Devil Take You Too
NR | Horror/Thriller
- The Masque of the Red Death (1964)
NR | Horror
- My Amityville Horror (2013)
NR | Documentary/Horror
- Mother, May I? (2023)
NR | Horror/Thriller
- Maniac (2013)
NR | Horror
- Mind Body Spirit (2023)
NR | Horror
- Manhattan Baby (2016)
NR | Horror
- Mastemah
NR | Drama/Horror
- Mosquito State
NR | Drama/Horror
- Mother's Day (1980)
NR | Horror
- Midnighters (2017)
NR | Holiday/Horror
- Marshmallow (2025)
NR | Horror/Thriller
- Metamorphosis (2019)
NR | Horror/Thriller
- Mandy (2018)
NR | Horror/Thriller
- Mandrake
NR | Horror/Thriller
- Monster Island (2024)
NR | Action/Horror
- The Most Dangerous Game (1932)
NR | Horror
- Maria Labo
NR | Horror
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