- Turkey--Kayseri1
- Turkish language--Versification1
- Turkish letters1
- Tuḥfah al-Wardīyah (Ibn al-Wardī, Zayn al-Dīn ʻUmar ibn al-Muẓaffar)1
- Tārīkh Baghdād (Khaṭīb al-Baghdādī, Abū Bakr Aḥmad ibn ʻAlī)1
- Ulama1
- Umm al-barāhīn fī ʻilm al-kalām (Sanūsī, Muḥammad ibn Yūsuf)1
- Urmawī, Sirāj al-Dīn Maḥmūd ibn Abī Bakr, 1198-12831
- Urmawī, Sirāj al-Dīn Maḥmūd ibn Abī Bakr, 1198-1283. Maṭāliʻ al-anwār1
- Vasiyetnâme (Birgivî Mehmet Efendi)1
- Versification1
- Virtue1
- Wahhābīyah1
- Water--Religious aspects--Islam1
- Weights and measures (Islamic law)1
- Women1
- Writing1
- Yazīd I, Caliph, approximately 642-6831
- Yemen (Republic)--Ḥimyar1
- Yunus Emre, -1320?1