- Turkey--Kütahya1
- Unmūdhaj fī al-naḥw (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Urmawī, Sirāj al-Dīn Maḥmūd ibn Abī Bakr, 1198-1283. Maṭāliʻ al-anwār1
- Usury1
- Utraquists1
- Uzzano, Alessandro da1
- Uzzano, Giovanni da, active 15th century1
- Val Secret (France)1
- Vellum wrappers1
- Ventimiglia, Guglielmo1
- Volvelles1
- Wajīz (Ghazzālī)1
- Warsh al-Miṣrī, ʻUthmān ibn Saʻīd, 728 or 729-812 or 8131
- Water rights1
- Weather forecasting1
- Weight gain1
- Willoughby, Richard, Sir1
- Women--Religious aspects--Islam1
- Wool industry1
- Writs1