Lake Buhi is a lake found in Buhi, Camarines Sur in the Philippines. It has an area of and has an average depth of . The lake lies in the valley formed by two ancient volcanoes, Mount Iriga (also known as Mount Asog) and Mount Malinao. It was created in 1641, when an earthquake caused a side of Mount Asog to collapse. The resulting landslide created a natural dam that blocked the flow of nearby streams. Another theory suggests that it was created by the eruption of Mt. Asog, which is now dormant.