- Jābir ibn Ḥayyān1
- Jāmiʻ al-ṣaḥīḥ (Bukhārī, Muḥammad ibn Ismāʻīl)1
- Jāmī, 1414-1492. Poems1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Kāfī (Kulaynī, Muḥammad ibn Yaʻqūb)1
- Kāsānī, Aḥmad Khvājagī1
- Lamaʻāt (ʻIrāqī, Fakhr al-Dīn Ibrāhīm)1
- Language and languages--Philosophy1
- Leather doublures1
- Legal forms1
- Liturgics1
- Mabādiʼ fī al-taṣrīf (Zanjānī, ʻAbd al-Wahhāb ibn Ibrāhīm)1
- Malikites1
- Manuscripts, Avestan1
- Manuscripts, Chagatai1
- Manuscripts, Digital1
- Marriage1
- Massachusetts--Williamstown1
- Medicine1
- Miniature painting, Iranian1