Barangay Cantahay

Classified as a small barangay, Barangay Cantahay is one of the administrative divisions of Guiuan in Eastern Samar, Eastern Visayas, Philippines.

According to the 2020 Philippine census, Barangay Cantahay had a population of 1,609. This made it the 8th largest of 60 barangays in Guiuan by population, placing it in the upper half of the municipality. Residents of Barangay Cantahay accounted for approximately 3.02% of the total population of Guiuan, which stood at 53,361 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Cantahay moving from 1,518 residents to 1,609 residents, an intercensal change of +6.0%. The trajectory indicates a growing community. Barangay Cantahay is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Guiuan is a municipality comprising 60 barangays, and serves as the governing unit directly responsible for local services in Barangay Cantahay, including public health, sanitation, peace and order, and civil registration. Within the wider province of Eastern Samar, which contains 597 barangays across its component cities and municipalities, Barangay Cantahay ranks 55th by 2020 population. Eastern Samar is classified as a 2nd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

The barangay's legislative and executive affairs are handled by a Punong Barangay and the Sangguniang Barangay, elected nationwide during the Barangay and SK Elections. The next BSKE is scheduled for Monday, November 2, 2026, following the synchronized election schedule set by COMELEC Resolution No. 11191.