- Gómez, Pedro (undifferentiated)1
- Heraldry1
- Hindu mantras1
- Hymns1
- Ibn Amīn al-Dawlah, al-ʻAfīf, active 15th century. Lamḥah al-ʻAfīfīyah fī al-ṭibb1
- Ibn Zaydūn, Aḥmad ibn ʻAbd Allāh, 1003 or 4-1071. Risālah al-jiddīyah1
- Ibn al-Biṭrīq, Yūḥannā, -approximately 8151
- Ibn al-Uqlīshī, Aḥmad ibn Maʻadd, -1155 or 11561
- Illumination of books and manuscripts, Iranian1
- Inlays1
- Inquisition1
- Iran--Dizfūl1
- Islamic calligraphy1
- Islamic ethics1
- Islamic law--Interpretation and construction1
- Islamic philosophy1
- Italy--Brescia1
- Italy--Treviso1
- Italy--Verona1
- Iḥyāʼ ʻulūm al-dīn (Ghazzālī)1