- Islamic countries1
- Islamic education1
- Islamic ethics1
- Islamic magic1
- Isra' and Mi`raj of the Prophet Muhammad1
- Iṣfahānī, Maḥmūd ibn ʻAbd al-Raḥmān, 1275 or 1276-1348 or 1349. Tasdīd al-ʻaqāʼid fī sharḥ Tajrīd al-qawāʻid1
- Jawī Zādah, Muḥammad ibn Ilyās, -1547 or 1548. Risālah fī al-masḥ ʻalá al-khuffayn1
- Judges (Islamic law)1
- Judgment Day (Islam)1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá sharḥ Tajrīd al-iʻtiqād1
- Jāmī, 1414-1492. Risālah-i muʻammā1
- Kaffawī, Ayyūb ibn Mūsá, 1618 or 1619-1682 or 1683. Kullīyāt Abī al-Baqāʼ1
- Kalbī, Diḥyah ibn Khalīfah, -approximately 6701
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Liquor laws (Islamic law)1
- Mahdi1
- Manuscripts, Persian1
- Minhāj al-ṭālibīn (Nawawī)1
- Miracles (Islam)1
- Muftis (Muslim officials)1