The Archivo de la Universidad de Santo Tomas (AUST), also known as the Archives of the University of Santo Tomas, is located at the Miguel de Benavides Library in Manila. The AUST is the central repository of historical and rare documents pertaining to, but not exclusively, the history of the University of Santo Tomas, one of the oldest existing universities in Asia, and the oldest institution of higher learning in the Philippines. The collections consist of historical documents such as Papal bulls, royal decrees, rare Filipiniana prints, historical treatises, addresses, sermons, novenas, catechisms in many Philippine languages, national periodicals, and academic records of all educational institutions in the Philippines during the Spanish period. The archives is also home to the only incunabula, or books printed before 1500, in the country.
Aside from having one of the largest collection of 15th-, 16th-, 17th-, and 18th-century European manuscripts in Asia, the archives also boasts of possessing the biggest collection of extant ancient baybayin scripts in the world.
