Lake Baao is a shallow freshwater lake located in Baao, Camarines Sur in Bicol Region, Luzon, Philippines. It has an estimated surface area of 177 hectares (1.77 km²) and reaches an average of only 1 meter deep. The lake is fed by local run-off and several small rivers, the most important of which is the Tabao River, which flows from another lake, Lake Buhi.