- Hair--Dyeing and bleaching1
- Hayākil al-nūr (Suhrawardī, Yaḥyá ibn Ḥabash)1
- Headbands1
- Historiography1
- Ibn al-Sarrāj, Aḥmad ibn Abī Bakr, active 14th century1
- Ibn al-ʻArabī, 1165-12401
- Illustrated works1
- Imāmʹzādah, Muḥammad ibn Abī Bakr, 1097 or 1098-1177 or 1178. Shirʻat al-Islām1
- Ishrāqīyah1
- Islam--Customs and practices1
- Islamic calligraphy1
- Iẓhār al-asrār (Birgivî Mehmet Efendi)1
- Judgment Day (Islam)1
- Khalwatīyah1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Language and languages--Philosophy1
- Logic, Medieval1
- Magic squares1
- Manuscripts, Persian1
- Mawāqif fī ʻilm al-kalām (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1