I Know Who You Fucked Last Halloween
- Tahun: 2018
- Negara: United States of America
- Genre: Crime, Thriller, Mystery
- Studio: Burning Angel
- Kata kunci: birthday, series of murders, porn parody, alt girls
- Pengarah: Joanna Angel
- Pelakon: Ariana Marie, Ivy Lebelle, Joanna Angel, Katrina Jade, Small Hands, Steve Holmes