- Italy--Tuscany2
- Italy--Verona2
- Italy--Vicenza2
- Italy--Volterra2
- Jainism2
- Jamʻ al-jawāmiʻ fī al-uṣūl (Subkī, Tāj al-Dīn ʻAbd al-Wahhāb ibn ʻAlī)2
- John, the Apostle, Saint2
- Juana, la Loca, Queen of Castile, 1479-15552
- Judaism2
- Judaism--Liturgy2
- Judaism--Liturgy--Texts2
- Justice, Administration of2
- Jāmiʻ al-ṣaghīr (Suyūṭī)2
- Karaites--Liturgy2
- Khaṣṣāf, Aḥmad ibn ʻUmar, d. 874 or 5. Adab al-qāḍī2
- Kings and rulers--Heraldry2
- Kings and rulers--Succession2
- Knowledge, Theory of2
- Land grants2
- Land titles--Registration and transfer2