Annabelle the Doll is the secondary antagonist of 2013 movie called The Conjuring and the titular main antagonist of its prequels, Annabelle and Annabelle: Creation. It is a powerful demonic entity that, despite being able to exist independently, frequently latches onto a porcelain doll to torment those who own it.
It is one of the artifacts taken by paranormal investigators Ed and Lorraine Warren during one of their cases. Annabelle is considered to be their most dangerous and haunted item, and has a habit of moving around unseen.