The 2012 UST Growling Tigers men's basketball team represented University of Santo Tomas in the 75th season of the University Athletic Association of the Philippines. The men's basketball tournament for the school year 2012-2013 began on July 14, 2012 and the host school for the season was National University. UST later won the Philippine Collegiate Champions League title in December and avenged their UAAP Finals loss to Ateneo by beating them in a best-of-three series, 2-1.