Colegio San Agustin-Biñan founded in 1985. The school began as a preparatory school for boys and girls attending preschool through third grade. Incorporated on November 16, 1984, it is located on a five-hectare site donated by a private land developer to the Augustinian Province of Santo Niño de Cebu.
The first faculty and staff consisted of twenty personnel and three priest-administrators catering to the needs of 646 students. The founding administrators included Rev. Rodolfo P. Sicio, OSA as Rector and Principal, Rev. Alfredo Jubac, OSA as treasurer and Rev. Marcelino Malana, OSA as guidance counselor and sports coordinator. Miss Doris S. Calog serves as the school Registrar, Assistant Principal and Academic Coordinator of all departments.