1920 establishments in the Philippines

Marinduque (; ), officially the Province of Marinduque, is an island province in the Philippines located in Southwestern Tagalog Region or Mimaropa, formerly designated as Region IV-B. Its capital is the municipality of Boac, the most populous in the province. Marinduque lies between Tayabas Bay to the north and Sibuyan Sea to the south. It is west of the Bondoc Peninsula of Quezon province in mainland Luzon; east of Mindoro Island; and north of the island province of Romblon. Some parts of the Verde Island Passage, the center of the center of world's marine biodiversity and a protected marine