Freida McFadden (born May 1, 1980) is the pen name of an American thriller author and practicing physician specializing in brain injury.

From New York City, McFadden attended Harvard University as an undergraduate. She practices medicine in the Boston area.^[2]

McFadden self-published her first book through Amazon KDP in 2013. Her 2022 book The Housemaid was an international bestseller.^[3] A film adaptation of the novel is in production for Lionsgate, with Rebecca Sonnenshine writing the screenplay, and Hidden Pictures' Todd Lieberman and Alex Young producing.^[4] It is directed by Paul Feig, and the cast includes Sydney Sweeney as Millie, Amanda Seyfried as Nina, Brandon Sklenar as Andrew, Michele Morrone as Enzo. Filming began in January 2025, and it is scheduled to be released on December 25, 2025.^[5]