Eastern Samar National Comprehensive High School (ESNCHS) is located in Borongan, Eastern Samar, Philippines. Formerly named Borongan National High School, Eastern Samar National Comprehensive High School was shortly established after the issuance of Republic Act No. 4221 in 1965, which divided the old province of Samar into three provinces: Western Samar, Eastern Samar and Northern Samar." ESNCHS is the largest high school in Eastern Samar in terms of both population and school area size. It is also considered the flagship high school of Eastern Samar.