St. Thomas University or University of St. Thomas may refer to:
- Saint Thomas Aquinas University, Colombia
- Saint Thomas Aquinas University of the North, Tucumán province, Argentina
- St. Thomas University (Canada), Fredericton, New Brunswick
- St. Thomas University, Japan
- St. Thomas University (Florida), United States
- Pontifical University of Saint Thomas Aquinas, Rome, Italy
- Universidad Santo Tomás de Aquino, Dominican Republic
- University of Santo Tomas, Manila, Philippines
- University of St. Thomas (Minnesota), United States
- University of St. Thomas (Texas), United States