| Piedras Blancas | |
| Settlement Type: | Barrio |
| Image Map1: | Montevideo Piedras Blancas.png |
| Map Caption1: | Location of Piedras Blancas in Montevideo |
| Subdivision Type: | Country |
| Subdivision Name: |  Uruguay |
| Subdivision Type1: | Department |
| Subdivision Name1: | Montevideo Department |
| Subdivision Type2: | City |
| Subdivision Name2: | Montevideo |
| Coordinates: | -34.8236°N -56.1403°W |
Piedras Blancas is a barrio (neighbourhood or district) of Montevideo, Uruguay.