CATBALOGAN, a municipality (with administration centre and 15 barrios or districts) and capital of the province and island of Samar, Philippine Islands. Pop. (1918) 13,544, of whom only 10 were whites. It lies midway between the ports of Manila and Zamboanga and is one of the most important commercial centres of the eastern Bisayan islands. The climate is cool and healthful. Abaci is the most important agricultural product, and the weav ing of fibres from abaci and silk forms an important industry. Mats are woven also from the sedge tiking. The fisheries are important. In 1918, it had 9 manufacturing establishments with output valued at 93,100 pesos and 164 household industry estab lishments, output, 45,200 pesos. Its six schools were all public. The main language spoken is a dialect of Bisayan.