- Trojan War1
- Tucci, Niccolò, 1908-19991
- Turkey--Amasya (Amasya İli)1
- Turkey--Edirne1
- Turkey--Erzincan1
- Turkey--Kütahya1
- Turkey--Malatya1
- Turkish Wars (Venice, Italy : 1453-1571)1
- Turkish language1
- Twentieth century1
- Ugo, Giacoma di1
- Ugo, Piero di1
- Ugolino, Lodovico di1
- Urine--Analysis1
- Urjūzah fī al-ṭibb (Avicenna)1
- Urology1
- Ushnuhī, ʻAbd al-ʻAzīz ibn ʻAlī, 12th cent. Kifāyah fī al-farāʼiḍ1
- Ustarūshanī, Muḥammad ibn Maḥmūd, -1234 or 1235. Fuṣūl1
- Vanne, Benedetto di1
- Vannello, Giovanni di1