Margaret White is a fictional character from the novel Carrie by Stephen King. She is the mother of the protagonist, Carrie White, and is depicted as a deeply religious and abusive woman. Her strict beliefs and oppressive nature contribute significantly to Carrie's struggles and eventual transformation. Margaret is portrayed as a fanatical Christian who imposes her views on her daughter, leading to a toxic relationship. Her actions and attitudes reflect themes of repression and the consequences of extreme beliefs, which are central to the story's exploration of bullying and revenge.