The Possession of Hannah Grace (also known in some countries as Cadaver) is a 2018 American supernatural horror thriller film directed by Diederik van Rooijen and written by Brian Sieve. It stars Shay Mitchell, Kirby Johnson, Stana Katic, Grey Damon and Nick Thune, and follows a former policewoman who encounters the supernatural while working in a morgue.

The film was released in the United States on November 30, 2018, by Sony Pictures Releasing. It was released under the Screen Gems label and received generally negative reviews from critics, but grossed $43 million worldwide.