- Jewelry2
- Jewish (culture or style)2
- Jewish philosophy2
- Jighmīnī, Maḥmūd ibn Muḥammad, -1221? Mulakhkhaṣ fī al-hayʼah2
- John I, King of Portugal, 1357-14332
- Juana, of Austria, Princess of Portugal, 1535-15732
- Judaism--Liturgy2
- Julian, of Eclanum, Bishop, 380-approximately 4552
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Sharḥ Shamsīyah2
- Justinian I, Emperor of the East, 483?-5652
- Jābir ibn Ḥayyān2
- Jānakīnātha Bhaṭṭācārya, active 16th century. Nyāyasiddhāntamañjarī2
- Jārabardī, Aḥmad ibn al-ḥusayn, d. 1346. Sharḥ al-Shāfiyah2
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, d. 1345. Mughnī fī ʻilm al-naḥw2
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-ḥasan, d. 1345. Mughnī fī ʻilm al-naḥw2
- Khalwatīyah2
- Kings and rulers--Religious aspects--Hinduism2
- Kinship (Islamic law)2
- Knowledge, Theory of (Hinduism)2
- Korea2