Pniewy is a town in Szamotuły County, Greater Poland Voivodeship, Poland, with 7,477 inhabitants (2004).
Pniewy had once been flooded to make way for a reservoir.
Pniewy may refer to the following places:
- Pniewy in Greater Poland Voivodeship (west-central Poland)
- Pniewy, Kuyavian-Pomeranian Voivodeship (north-central Poland)
- Pniewy, Masovian Voivodeship (east-central Poland)
- Pniewy, West Pomeranian Voivodeship (north-west Poland)