Mermaid Down
- År: 2019
- Land: United States of America
- Genre: Gyser, Fantasy, Mysterium, Thriller
- Studio: Grellman Film, Heartpine Pictures, Mermaid Down
- Nøgleord: asylum, mermaid, mental, alexandrabokova
- Direktør: Jeffrey Grellman
- Cast: Alexandra Bokova, Meggan Kaiser, Burt Culver, Michelle Gallagher, Shepherd Stevenson, Phillip Andre Botello