Rosario, Northern Samar

Rosario, officially the Municipality of Rosario (Bungto han Rosario; Bayan ng Rosario), is a 5th class municipality in the province of Northern Samar, Philippines. According to the 2020 census, it has a population of 10,949 people.

It is bordered in the west by Lavezares and Victoria to the south. Its coastal area is protected as part of the Biri Larosa Protected Landscape and Seascape.

Barangays
Rosario is politically subdivided into 11 barangays. Each barangay consists of puroks and some have sitios.
 * Aguada
 * Buenavista
 * Jamoog
 * Ligaya
 * Poblacion (Estillero)
 * Salhag
 * San Lorenzo
 * Bantolinao
 * Commonwealth
 * Guindaulan
 * Kailingan