Nightmare
- Jier: 1964
- Lân: United Kingdom
- Sjenre: Thriller, Horror, Mystery
- Studio: Hammer Film Productions
- Keyword: dreams, nightmare, father murder, suicide attempt, asylum, girls' boarding school, psychological thriller, girls' school
- Direkteur: Freddie Francis
- Cast: David Knight, Moira Redmond, Jennie Linden, Brenda Bruce, George A. Cooper, Irene Richmond