Insidious: The Last Key
- Jaar: 2018
- Land: United States of America
- Genre: Horror, Thriller
- Studio: Stage 6 Films, Blumhouse Productions, Universal Pictures, Oren Peli Productions
- Sleutelwoord: key, medium, haunted house, prequel, spirit, 1950s, insidious
- Direkteur: Adam Robitel
- Gooi: Lin Shaye, Leigh Whannell, Angus Sampson, Kirk Acevedo, Caitlin Gerard, Spencer Locke