- Jamʻ al-jawāmiʻ fī al-uṣūl (Subkī, Tāj al-Dīn ʻAbd al-Wahhāb ibn ʻAlī)1
- Jawshan al-kabīr1
- Jerome, Saint, -419 or 4201
- Jewish sermons1
- Jewish sermons, Hebrew1
- Jewish travelers1
- Jews--Dietary laws1
- John the Baptist's Day1
- Judges (Islamic law)1
- Jāmī, 1414-1492. Poems1
- Kaddish1
- Karma1
- Kavvanot (Cabala)1
- Khadījah, -approximately 6191
- Khalwatīyah1
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)1
- Khwājahʹzādah, Muṣṭafá ibn Yūsuf, -1487 or 14881
- Kings and rulers--Religious aspects1
- Kinship (Islamic law)1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1