The University of San Agustin (commonly referred to as San Agustin, San Ag, or USA) is a private Catholic university in Iloilo City, Philippines. With 40 initial students, it was established in 1904 as a preparatory school for boys by the Spanish Catholic missionaries with the help of their American confreres under the Order of Saint Augustine during the American colonial period. In 1917, it was incorporated and became "Colegio de San Agustin de Iloilo". In March 1953, San Agustin attained university status making it as the first university in Western Visayas. San Agustin is likewise the first Augustinian university in the Asia-Pacific region.