Kimberly Jean Brown (born November 16, 1984) is an American actress and former child model. She is known for her roles as Marah Lewis #3 on The Guiding Light (for which she earned an Emmy nomination), Annie Wheaton in the Rose Red miniseries (an original miniseries written by Stephen King), teen witch Marnie Piper on the Halloweentown series, and Sarah Sanderson in Bringing Down the House.

By the time she was 11 years old, Brown had already enjoyed success as a child model with Ford Models and performed in multiple Broadway shows. At the age of 13, Brown was cast in her most notable film, the Disney Channel Original Movie Halloweentown, in which she played 13-year-old teen witch Marnie Piper. She reprised her role as Marnie in two sequels.