The Ślęza is a river in Lower Silesia, Poland.
Ślęza or Ślęża may also refer to:
- Ślęza, Lower Silesian Voivodeship, a village in Lower Silesia
- Ślęża, a mountain in Lower Silesia
- Ślęża Landscape Park, a protected area around Mount Ślęża
- Ślęża Massif, a mountain in Lower Silesia