- Ibn Saʻādah, Aḥmad ibn ʻAlī, active 13th century. Risālat al-ʻilm1
- Ibn al-Fāriḍ, ʻUmar ibn ʻAlī, 1181 or 1182-1235. Tāʾīyah1
- Illegible markings1
- Illumination of books and manuscripts, Arab1
- Illumination of books and manuscripts, Italian1
- Illustrated works1
- Imams (Shiites)--Biography1
- Imāmʹzādah, Muḥammad ibn Abī Bakr, 1097 or 1098-1177 or 1178. Shirʻat al-Islām1
- Inheritance and succession (Islamic law)1
- Inscriptions1
- Iran--Dizfūl1
- Iran--Iṣfahān1
- Islamic civilization1
- Islamic eschatology1
- Islamic learning and scholarship1
- Islamic literature1
- Islamic poetry1
- Islamic poetry, Arabic1
- Islamic poetry, Turkish1
- Isra' and Mi`raj of the Prophet Muhammad1