The Rector Magnificus of the University of Santo Tomas is the highest-ranking officer and chief administrator of the University of Santo Tomas (UST), the oldest and the largest Catholic university in Manila, Philippines. The rector typically sits as chief executive and chair of the university board of trustees. He exercises policy-making as well as general academic, managerial, and religious functions over all university academic and non-academic staff. His term lasts for four years and he is qualified for re-election for two or more terms.