Colegio San Agustín – Makati, also referred to by its acronym CSA or CSA-Makati, is a private, Catholic, co-educational basic education institution run by the Augustinian Province of the Most Holy Name of Jesus of the Philippines of the Order of Saint Augustine in Dasmariñas Village, Makati, Metro Manila, Philippines.

On November 24, 1976, nine years later, they received as donation from Ayala Corporation, two of the four hectares stipulated in the option agreement.

Ten months later, on July 7, 1969, the school opened its doors to the first enrollees, both male and female, numbering 652.

Classes from nursery to preparatory, grades one to twelve (implementation of the K-12 program), serving a student body of more than 6,100.

Air-conditioning of classrooms at all levels was implemented in 2002, the year the streetlight project was completed and the vertical extension of the grade school covered walk fence added.

In 2004 architect Ireneo Jasareno conducted a major renovation of the CSA theatre, which was inaugurated on November 25, 2005, and of the Sta.

Rita de Cascia Hall (grade school lecture room), which was blessed on June 30, 2006.

He also was responsible for the technical supervision of the construction of La Pergola de Maria, Mary's grotto, on January 17, 2008.

As the student population continued to grow, further expansion was needed, starting with the completion of the High School Building in 1977.

[4] In 2018, Heart Evangelista recounted to Mimiyuuuh that she stopped studying at CSA-Makati because of bullying by a former classmate who lately apologized to her.

[5] In 2022, the DepEd investigated a viral toilet “school violence” involving a ninth grade male student who used brass knuckles to pin down and repeatedly strike another causing serious physical injury.

[6] In 2024, the CSA alleged bullying incident occurred on December 10, when Yasmien Kurdi in her Instagram claimed that Ayesha's seven classmates ganged her up on by blocking her exit from the room.

[8] The incident was met with widespread netizens comment on social media, denouncing the gaslighting and online hate group against the Kurdi-Soldevilla family for years.

There are bulletin boards in classrooms, as well as a clock, a crucifix and pictures of Saint Augustine, Our Lady of Good Counsel and St. Monica.

In addition to the computer laboratories in the Grade School, there is a computer-aided instruction room for interactive learning.

The Cafeteria or Integrated Canteen is above the covered courts and has 23 stalls offering food and other meals in a fast-food-like fashion.

The Theatre is used for school functions, such as academic contests, graduation, recognition ceremonies, songfests, choral recitations, and most notably the annual Lux Nova pageant.

In 2010, the GSSC held its first automated elections with the use of a computer website (Phoenix Aralinks (CSA GS modified)) instead of a ballot.

Numerous alumni of Colegio San Agustin-Makati have become highly distinguished and nationally recognized celebrities.

TV Personalities: Actress and Television personality Kris Aquino;[10] Highly acclaimed equestrian Mikee Cojuangco-Jaworski, nco; Myx VJs Iya Villania and Luis Manzano, taekwondo champion, actor and public servant Monsour del Rosario, Cristina Gonzales-Romualdez, Pia Guanio, Karen Kunawicz, news anchors Vicky Morales, Karen Davila,[10] and Pinky Webb.

[10] Music: Concert King Martin Nievera; Velcro lead singer and The Voice of the Philippines season 1 finalist, Junji Arias, Roselle Nava, Pilipinas Got Talent Season 3 Runner Up, Khalil Ramos, and internationally known band Prettier Than Pink.

Film: Heart Evangelista, Lovi Poe, Ruffa Gutierrez, Gretchen Barretto, Dominic Ochoa, Andrea Torres, TJ Trinidad, Desiree del Valle, Maui Taylor, JC de Vera, Valeen Montenegro, Bela Padilla, Lovi Poe, and Nikki Valdez; Models: Julie Lee, Kelly Misa; Miss Universe Philippines 2017, Rachel Peters.

Sports: Olympians-TV hosts Christine Jacob and Dyan Castillejo; Olympians Felix Barrientos, Eric Buhain, Akiko Thomson; PBA player Robert "Dodot" Jaworski Jr.; Ateneo de Manila University L, Julia Melissa "Jia" Morado[11] and Dennise Michelle "Denden" Lazaro[12] also graduated high-school in CSA.