Mary Ellen Wilson (1864–1956) or sometimes Mary Ellen McCormack was an American whose case of child abuse led to the creation of the New York Society for the Prevention of Cruelty to Children. As an eight-year old, she was severely abused by her foster parents, Francis and Mary Connolly.

Mary Ellen Wilson (1864–1956) or sometimes Mary Ellen McCormack was an American whose case of child abuse led to the creation of the New York Society for the Prevention of Cruelty to Children. As an eight-year old, she was severely abused by her foster parents, Francis and Mary Connolly.