Servant is an American psychological horror television series created by Tony Basgallop, with executive producer M. Night Shyamalan acting as showrunner, and produced for Apple TV+. Lauren Ambrose, Toby Kebbell, Nell Tiger Free and Rupert Grint star in all four seasons of the series, which premiered on November 28, 2019, and concluded with the end of its fourth season on March 17, 2023.

The series takes place in the household of Dorothy and Sean Turner, a couple in Philadelphia who hire eighteen-year-old Leanne Grayson to be the live-in nanny of their infant son Jericho; however, Jericho is dead and has been replaced by a reborn doll, which a traumatized Dorothy believes to be the real, still-alive Jericho, leading her family to act accordingly. Leanne's arrival brings about strange occurrences in the household, unearthing dark secrets of both her and the family.

The series received critical acclaim, with particular praise for its atmosphere and the performances of the four leads; it received high praise from Guillermo del Toro and Stephen King.