Founded in 1620, Colegio de San Juan de Letran, Letran College, or simply Letran, is a private Roman Catholic institution of learning located in Intramuros, Manila. It has the distinction of being the oldest college in the Philippines and the oldest secondary institution in Asia.

Owned and administered by the friars of the Order of Preachers (Dominicans) of the Philippine Dominican Province, the school has produced Philippine presidents, revolutionary heroes, poets, legislators, members of the clergy, jurists, and it is also one of the only Philippine schools that has produced several Catholic saints who lived and studied on its campus. The school's patron saint is St. John the Baptist while its patroness is Our Lady of the Most Holy Rosary. The campus contains two statues representing the two foremost alumni in the fields of secular and religious service: former Philippine President Manuel L. Quezon and Vietnamese Saint Vicente Liem de la Paz.

Letran has programs in Business, Management, Marketing, Entrepreneurship, Information Technology, Digital Arts, Communication Arts, Accountancy, Engineering etc. The colleges are divided into six departments: College of Liberal Arts and Sciences (CLAS), College of Business Administration and Accountancy (CBAA), College of Education (CoEd), Institute of Communication (iCOMM), Institute of Information Technology (iIT), and College of Engineering (CoE).

The Colegio has successful athletic programs, particularly in basketball, football (soccer) |football, volleyball, taekwondo, and tennis. Through the years Letran has produced numerous athletes that have donned the national colors (especially in basketball) in international events like the Olympics, Asian Games, Southeast Asian Games, Jones Cup, and FIBA World Championship. Letran is a long-time member of the National Collegiate Athletic Association.

The Colegio was given Level 3 accreditation by the Philippine Accrediting Association of Schools, Colleges and Universities in the Elementary department, the highest possible level for basic education; Level 2 for the High School department, the College of Liberal Arts and Sciences (CLAS), and the College of Business Administration and Accountancy (CBAA).

Campuses and Buildings

Letran remains in its original campus in Intramuros, Manila and is a member of the Intramuros Consortium. It has for each classroom two air-conditioning units, overhead and LCD projectors and television sets, and DVD players for science classrooms. The colegio is composed of seven buildings:

• St. John the Baptist Building

Also known as the Administration Building, it houses the office of the rector and president. It houses the Admission Office, Financial Affairs Office, Letran Center for Intramuros Studies Office (LCIS), Guidance Counselor Office, the Information Technology Center, College of Business Administration and Accountancy, College of Education, and the Institute of Information Technology. The bookstore, lobby, speech laboratory, and chapel are also in this building. The St. John Lateran convent of the Letran Dominican Fathers is located here.

• St. Dominic de Guzman Building

The building was named after the founder of the Order of Preachers (Dominicans). This building houses classrooms, Science and Psychology Laboratory, College of Liberal Arts and Sciences and The Institute of Communication.

• St. Thomas Aquinas Building

This building houses the Library and Media Center for Communication Arts students. The Media Center has two sections: Instructional Media and Broadcast Media. It provides human and material resources for instructional and broadcast purposes. Among the facilities is an audio-video library, viewing rooms, instructional media resources for circulation. Services include lending of instructional materials, rendering the execution of art work, photo coverage and black-and-white photo developing and printing. For broadcast media facilities, the TV production studio, radio production and studio post-production. Services offered are audio and video production and editing, video coverage, etc. Several facilities are the Apple Mac-Lab Editing Suite, TV Studio, Radio Mini Station and many more. The library is divided into sections:

• Filipiniana Section
• Circulation Section
• High School Library
• Graduate School Library
• Media Library
• Internet Section
• Periodical Section
• Archives Section

The St. Thomas Building has also a television for televiewing purposes.

• St. Raymond of Peñafort Building

This building is also known as the High School Building. St. Raymond of Peñafort houses the Office of the Vice Rector for Academic Affairs. It includes the Accounting Stock Room, Lost and Found Office, Hospitality Management Facility, Office of the Religious Affairs, Letran Alumni Association Office, and the Center for Community Development Office. The school clinic is in this building.

• St. Albert the Great Building

This building is also known as the Student Center Building because it houses student facilities such as the canteens, a modern 400-seat auditorium, Office of the Student and Cultural Affairs, Letran Student Council Office, the Graduate School, six SC classrooms, Thesis Section, The Lance Publication Office, and the Office of the Dean in Graduate School.

• St. Antoninus Building

It holds the Letran's several computer laboratories for the Information Technology students and the Philippines' first Microsoft IT Academy. It also houses the IQUAME Working Room.

• St. Vincent Ferrer Building

It serves as the elementary building and it houses the music rooms and the chaplain's office.

• Letran Gymnasium

It is the home of the Knights and Squires of the NCAA and other sports competitions. Letran Gym has three physical education classrooms with a centralized air-conditioned unit. It houses the Letran Hall of Fame and the P.E. faculty.

• San Vicente Liem dela Paz Dormitory

San Vicente Liem dela Paz Dormitory is the dormitory of Letran Manila.

Letranite Life and Culture

• Binyag Arriba - Freshmen Orientation day
• Letramurals - Letran annual college intramurals
• Cinema Knights - Pelikuletran is an annual showcase of short films made by senior Communication Arts students.
• Arriba Fest - Primered by the Eucharistic Celebration, the Arriba Fest is the Letranite way of celebrating Christmas. It is one of the most awaited events of the year showcasing different performances from different student organizations, and live bands, which is complemented with an extravagant show of pyrotechny. It also featured a Holy Mass and The Grand Fireworks Display. The main highlight, however, was gift giving. A Giant Christmas tree was erected at the Lobby of the Colegio where Letranites placed their donations for the victims of Typhoon Uring.
• Pistang Paskong Pinoy
• Hakbang Arriba - Pilgrimage for college students
• Sulong Arriba - (Letran Baccalaureate Mass) Ceremony of the Light, The Sending off Rites and Graduation Ball

Official Publications

• The Lance, the official student publication of Colegio de San Juan de Letran - Manila
• The Letran Scroll for the High School Level
• Letran Page for the Elementary Level
• Muralla is the literary portfolio of The Lance
• Letran News for the Administration
• KNIGHTline for Letran Alumni Association
• Luz Y Saber - Letran Research Journal
• Letranense - Yearbook
• The Shield, the official student publication of Colegio de San Juan de Letran - Bataan
• The Knight, the official publication of the collegiate department of Letran-Calamba
• The Squire, the official publication of the high school department of Letran-Calamba
• Ang Kabalyero, the official publication, in Filipino language, of the high school department of Letran-Calamba
• The Page, the official publication of the elementary department of Letran-Calamba
• Barangay Letran, the official publication of the administration and academic schools of Letran-Calamba
• Lilok - Letran-Calamba research journal.