Serra de Água (Portuguese meaning literally mountain range of water) is a civil parish in the municipality of Ribeira Brava on the Portuguese island of Madeira. The population in 2011 was 1,049, in an area of 24.16 km<sup>2</sup>.
History
Serra de Água's name is derived from the historical construction of a watermill used for sawmilling, that was named serra de água, and later became applied to the entire parish. Wood was the first of livelihood and income for the early settlers to Madeira, and due to the abundance of vegetation in Serra de Água the sawmills, commercial exportation of wood was very profitable.