The 2019 UST Growling Tigers men's basketball team represented University of Santo Tomas in the 82nd season of the University Athletic Association of the Philippines. The men's basketball tournament for the school year 2019-20 began on September 4, 2019 and the host school for the season was Ateneo de Manila University. The Tigers made it back to the playoffs for the first time since Season 78 after finishing the double round-robin eliminations at fourth place with 8 wins against 6 losses. The FEU Tamaraws had the same win–loss record but were ranked higher on a superior +6 quotient over UST.