Alexandr Faintsimmer
- Birthday: 12/31/1906
- Deathday: 3/21/1982
- Place of birth: Yekaterinoslav, Russian Empire [now Dnipropetrovsk, Ukraine]
- Fame for: Directing
- Also known as: Александр Файнциммер, Aleksandr Faintsimmer, Aleksander Faintsimmer, Alexander Faintsimmer, A. Faintsimmer, A. Fajntsimmer, A. Fayntsimmer