Maureen Callahan is an American journalist, author, and cultural critic known for her work in fashion, celebrity culture, and investigative features. A longtime columnist and editor at publications such as New York Post, Vanity Fair, and Spin, she is recognized for her incisive commentary and accessible writing style. Callahan authored the bestselling book Champagne Supernovas, which explores the rise of 1990s fashion icons like Kate Moss, Marc Jacobs, and Alexander McQueen, and American Predator, a true crime account of serial killer Israel Keyes, praised for its depth of research and narrative clarity. Her work often examines fame, media, and American identity with a sharp critical lens.