| Represa de Guarapiranga | |
|---|---|
 Guarapiranga dam in bird's-eye view Photo by: Hamilton Breternitz Furtado | |
  Guarapiranga Reservoir  Guarapiranga Reservoir | |
| Location | São Paulo |
| Coordinates | 23°43′37″S 46°44′07″W / 23.7269°S 46.7352°W |
| Type | reservoir |
| Primary inflows | River Guarapiranga |
| Primary outflows | 13.8 m3/s (490 cu ft/s) |
| Catchment area | 631 km2 (244 sq mi) |
| Basin countries | Brazil |
| Max. length | 19.17 kilometres (11.91 mi) |
| Max. width | 2.67 kilometres (1.66 mi) |
| Surface area | 26.6 km2 (10.3 sq mi) |
| Water volume | 171 million cubic metres (139,000 acre⋅ft) |
| Islands | several islands |
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The Reservoir of Guarapiranga (Represa de Guarapiranga) is a reservoir in the southern area of the city of São Paulo, in the State of São Paulo, Brazil.