| Vargem do Braço River | |
| Name Other: | Vargem do Cedro River Pilões River |
| Pushpin Map: | Brazil |
| River System: | Cubatão River |
| Mouth Location: | Cubatão River, Morro da Pipa, Santa Catarina |
| Mouth Coordinates: | -27.7064°N -48.7017°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Vargem do Braço River (pt|Rio Vargem do Braço, also known as Rio Vargem do Cedro[1] and Rio Pilões[2]) is a river of the state of Santa Catarina, Brazil.
The Vargem do Braço River rises in the lushly-forested Serra do Tabuleiro State Park, a protected area created in 1975.The Serra do Tabuleiro, with altitudes above, is the largest mountain in the east-central portion of the state.The river is the main source of water for the greater Florianópolis metropolitan region.The river seems to have flowed north-northwest until quite recently, when a major tectonic event forced it to change its course. It now flows east-northeast to enter the Cubatão River near its mouth on the Atlantic Ocean.