Colegio San Agustin – Biñan (CSA-Biñan) is a private Catholic educational institution in Biñan, Laguna, Philippines, established in 1985 by the Augustinian Province of Santo Niño de Cebu.   The school began by offering preschool through third grade, serving 646 students with a staff of twenty lay personnel and three priest-administrators. 

In 1987, the Department of Education granted recognition for pre-elementary and elementary courses, followed by approval for the secondary course in 1989.   The College Department opened in the 1998–1999 academic year, offering ten baccalaureate degree programs and two associate courses.  

CSA-Biñan’s primary and secondary education programs have achieved Level III accreditation from the Philippine Accrediting Association of Schools, Colleges and Universities (PAASCU), reflecting its commitment to academic excellence.