BALAYAN, a municipality (with administration centre and 25 barrios or districts) and port of entry of the province of Batangas, Luzon, Philippine Islands, lying at the head of the Bay of Balayan, about 55m. by land S. by W. of Manila and 79 by water. Pop. (1918), 13,141, of whom 6,450 were males and one was white. Its climate is healthful, and its fertile district (with a volcanic soil) produces in abundance rice, sugar, corn and various fruits. Horses and cattle are raised for market in considerable numbers and its fisheries are important. In 1918, it had seven manufacturing establishments, with output valued at 42,300 pesos, besides 98 household industry establishments with an output valued at 32,800 pesos. It had five public schools. Balayan was formerly the capital of the province which was also called Balayan.