Margaret White is a fictional character created by American author Stephen King in his first published horror novel, Carrie (1974), where she is the main antagonist.

Carrie is a 1974 horror novel, the first by American author Stephen King. Set in Chamberlain, Maine, the plot revolves around Carrie White, a friendless, bullied high-school girl from an abusive religious household who discovers she has telekinetic powers. Feeling guilty for harassing Carrie, Sue Snell invites Carrie to the prom with Tommy Ross, but a humiliating prank during the prom by Chris Hargensen leads to Carrie destroying the town with her powers. The narrative contains fictional documents in approximately chronological order that present multiple perspectives on the prom incident and its perpetrator. Carrie deals with themes of ostracism and revenge, with the opening shower scene and the destruction of Chamberlain being pivotal scenes.