Mniszek may refer to the following places:
- Mniszek, Kuyavian-Pomeranian Voivodeship (north-central Poland)
- Mniszek, Lublin Voivodeship (east Poland)
- Mniszek, Świętokrzyskie Voivodeship (south-central Poland)
- Mniszek, Masovian Voivodeship (east-central Poland)
- Mniszek, Pomeranian Voivodeship (north Poland)