Daguao is a barrio in the municipality of Naguabo, Puerto Rico.

[3][4][5] In its early days, Daguao was slated to be the capital of Puerto Rico but the area was destroyed by Caribs from neighbor-island Vieques and by Taínos from the eastern area of Puerto Rico.

[6] Daguao was in Spain's gazetteers[7] until Puerto Rico was ceded by Spain in the aftermath of the Spanish–American War under the terms of the Treaty of Paris of 1898 and became an unincorporated territory of the United States.

In 1899, the United States Department of War conducted a census of Puerto Rico finding that the population of Daguao barrio was 756.

Barrios (which are, in contemporary times, roughly comparable to minor civil divisions)[14] in turn are further subdivided into smaller local populated place areas/units called sectores (sectors in English).