San Jose de Buan, officially the Municipality of San Jose de Buan (Waray: Bungto han San Jose de Buan; Tagalog: Bayan ng San Jose de Buan), is a municipality in the province of Samar, Philippines. According to the 2020 census, it has a population of 7,767 people.
San Jose de Buan was a municipal district of Gandara from 1948 to 1969, when it was converted into a municipality.
The Local Government Unit of San Jose de Buan shall promote peace and uplift social, economic and political development while preserving the cultural heritage and environmental resources through good governance and effective partnership with stakeholders in order to attain quality of life for all Buananons.
San Jose de Buan is a national eco-tourism and agro-forestry destination with safe, empowered and God-loving people living in resilient and well-managed environment under a progressive economy led by accountable leaders.