- Ibn al-Sāʻātī, Aḥmad ibn ʻAlī, 1254-1294 or 5. Majmaʻ al-baḥrayn wa-multaqá al-nayyirayn1
- Ibn al-ʻImād al-Aqfahsī, Aḥmad, ca. 1349-1405. Iqtiṣād fī kifāyat al-ʻuqqād1
- Iceland1
- Ildephonsus, Saint, approximately 610-6671
- Illumination of books and manuscripts, French1
- Illumination of books and manuscripts, Medieval1
- Imamate1
- Imams (Shiites)1
- Incantations, Hebrew1
- India--Goa (State)1
- India--Surat1
- Indians of Central America--Missions1
- Indians of Mexico--Land tenure1
- Indians of Mexico--Legal status, laws, etc.1
- Indians of Mexico--Social life and customs1
- Indians of South America1
- Indians of the West Indies1
- Inheritance and succession (Jewish law)1
- Ink1
- Ink stamps1