- Tucci, Niccolò, 1908-19991
- Turkish Wars (Venice, Italy : 17th century)1
- Typology (Theology)1
- Tzeltal language1
- Tzeltal language--Grammar1
- Ugo, Giacoma di1
- Ugo, Piero di1
- Ugolino, Lodovico di1
- Ulivieri, Petronio1
- Ulric, Saint, Bishop of Augsburg, 890-9731
- Umidis, Jacomo di Pietro de1
- Underscoring1
- Unfinished works1
- United States1
- Universals (Philosophy)1
- Universidad de Salamanca1
- Universities and colleges1
- Universities and colleges--Faculty1
- Università di Bologna1
- Universität Regensburg1