Lavezares is a 5th class municipality in the province of Northern Samar, Philippines. It is bounded on the west by the municipality of Allen, on the northwest by San Bernardino Strait, on the south and southwest by the municipality of Victoria, on the east by the municipality of Rosario and on the north by the municipality of Biri. According to the 2000 census, it has a population of 23,991 people in 4,637 households.
During the Spanish period, Lavezares was controlled by secular piests. It was named in honor of the Spanish General Miguel Guido de Lavezares who helped them become separated from the Municipality of Allen, and be an independent municipality. Sitios of Lavezares including Caburihan, Ocad, Caragas, Cataogan and Sabang-Tabok were converted into barangays though Republic Act 2370 (the Barrio Charter Act) and Republic Act 3590 (the Revised Barrio Charter Act). And shortly, the municipality was administered by the capitanes, presidentes and municipal mayors.