- Turkish Wars (Venice, Italy : 17th century)1
- Tuḥfat al-ḥukkām fī nukat al-ʻuqūd wa-al-aḥkām (Ibn ʻĀṣim, Muḥammad ibn Muḥammad)1
- Tyndale, William, -1536. Souper of the Lorde1
- Ugo, Giacoma di1
- Ugo, Piero di1
- Ugolino, Lodovico di1
- Uguccioni, Carlo1
- Ulama1
- Ulivieri, Petronio1
- Umidis, Jacomo di Pietro de1
- Universals (Philosophy)1
- Università di Bologna1
- Universität Wittenberg1
- Unmūdhaj fī al-naḥw (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Upanishads. Kaivalyopaniṣad1
- Upanishads. Kālāgnirudropaniṣad1
- Upanishads. Māṇḍūkyopaniṣad1
- Urban VII, Pope, 1521-15901
- Uzzano, Alessandro da1
- Uzzano, Giovanni da, active 15th century1