- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjaz fī al-ṭibb1
- Ibn al-Nāẓim, Muḥammad ibn Muḥammad, -1287 or 1288. Sharḥ Alfīyat Ibn Mālik1
- Ibn al-Sarrāj, Aḥmad ibn Abī Bakr, active 14th century1
- Ibn al-Shahīd al-Thānī, al-Ḥasan, 1551 or 1552-1602 or 1603. Maʻālim al-dīn wa-malādhdh al-mujtahidīn1
- Ibn al-Uqlīshī, Aḥmad ibn Maʻadd, -1155 or 11561
- Ibn al-ʻArabī, 1165-1240. Works1
- Ibn ʻAllān, Muḥammad ʻAlī ibn Muḥammad, 1588-1648. Fatḥ al-qarīb al-mujīb fī naẓm Khaṣāʼiṣ al-ḥabīb1
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Tahdhīb al-Tahdhīb.--Abridgment1
- Idols and images1
- Illumination of books and manuscripts, Italian1
- Illusion (Philosophy)1
- India--Agra1
- India--Allahabad1
- India--Jammu and Kashmir1
- India--Vārānasi (Uttar Pradesh)1
- Indians of Central America1
- Indians of Central America--Taxation1
- Inference1
- Inheritance and succession1
- Inquisition1