Colegio San Agustin – Bacolod, also referred to by its acronym CSA-B, is a private, Catholic coeducational basic and higher education institution run by the Augustinian Province of Santo Niño de Cebu, Philippines of the Order of Saint Augustine in Bacolod City Negros Occidental, Philippines.

[1] The Augustinians acquired the Casanova School founded by Doña Soledad Locsin on August 9, 1961.

On July 19, 1964, the College Department opened with curricular offerings ranging from Liberal Arts, Education, Commerce and Secretarial.

[2] The school's student population doubled after the College Department opened in 1964, and the administrators had another four-storey building constructed in early 1969.

[2] The school opened the College of Nursing in 1970, its most prominent alumna to date being singer Kuh Ledesma.