​TANAUAN, a town of the province of Batangas, Luzon, Philippine Islands, about 38 m. S.S.E. of Manila. Pop. (1903) 18,263. Tanauan is situated on a rolling upland plain. It formerly produced much sugar, but its inhabitants are now engaged chiefly in the cultivation of rice, Indian corn and fruit. Oranges and hogs are sent from Tanauan to the Manila market. The language is Tagalog.