Barangay G. M. Osias

Classified as a small barangay, Barangay G. M. Osias is one of the administrative divisions of Gamay in Northern Samar, Eastern Visayas, Philippines.

According to the 2020 Philippine census, Barangay G. M. Osias had a population of 708. This made it the 15th largest of 26 barangays in Gamay by population, placing it in the middle tier of the municipality. Residents of Barangay G. M. Osias accounted for approximately 3.03% of the total population of Gamay, which stood at 23,367 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay G. M. Osias changed from 682 to 708, a shift of +3.8% over the five-year period. This places the barangay among those with growing populations in Gamay. Barangay G. M. Osias is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Gamay is a municipality comprising 26 barangays, and serves as the governing unit directly responsible for local services in Barangay G. M. Osias, including public health, sanitation, peace and order, and civil registration. Within the wider province of Northern Samar, which contains 569 barangays across its component cities and municipalities, Barangay G. M. Osias ranks 322nd by 2020 population. Northern 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.