Former Owner
- John Edgar Ker1
- John Henry Ellis1
- John Henry Wrenn1
- John Hinsdale Scheide1
- John Hunt1
- John Jarsey1
- John Lee1
- John Wallop, Viscount Lymington1
- John Ward, 1st Earl of Dudley1
- José Fernando Ramírez1
- Juan de Iriarte y Cisneros1
- Judith Lady Montefiore College1
- Kaikhusroo Minocher Jamaspasa1
- Karva, Lakṣmaṇabhaṭṭa1
- Katharinenkirche, Nuremberg1
- Katherine Somerset Wyttenbach Fenwick1
- Kavīndrācārya, approximately 1600-approximately 16751
- Khammāsh, Aḥmad1
- Kherḍe, Gaṇeśa Bhaṭṭa1
- Kherḍe, Kṛṣṇa Bhaṭṭa1