- Tahdhīb al-manṭiq wa-al-kalām (Taftāzānī, Masʻūd ibn ʻUmar)1
- Tajrīd al-iʻtiqād (Ṭūsī, Naṣīr al-Dīn Muḥammad ibn Muḥammad)1
- Teeth--Care and hygiene1
- Teeth--Religious aspects--Islam1
- Theodicy1
- Time measurements1
- Timekeeping1
- Toothpicks1
- Turbans--Religious aspects--Islam1
- Urmawī, Sirāj al-Dīn Maḥmūd ibn Abī Bakr, 1198-1283. Maṭāliʻ al-anwār1
- Water clocks1
- formulas (instructions)1
- geometry1
- holographs (autographs)1
- manuscripts (documents)1
- paper (fiber product)1
- ʻAlī al-Amīr, 1757 or 1758-1805. Tashnīf al-ādhān bi-asrār al-adhān1
- Ṣidqī, Muṣṭafá, -1769 or 17701
- Ṭawāliʻ al-anwār min maṭāliʻ al-anẓār (Bayḍāwī, ʻAbd Allāh ibn ʻUmar)1
- Ṭaḥāwī, Aḥmad ibn Muḥammad, 852?-933. ʻAqīdat ahl al-sunnah wa-al-jamāʻah1