Mata Hari
- Taon: 1931
- Bansa: United States of America
- Genre: Crime, Drama, Romance
- Studio: Metro-Goldwyn-Mayer
- Keyword: espionage, world war i, spy, female spy, pre-code, exotic dancer
- Direktor: George Fitzmaurice
- Cast: Greta Garbo, Ramon Novarro, Lionel Barrymore, Lewis Stone, C. Henry Gordon, Karen Morley