Former Owner
- Jeannette Piccard1
- Jehan de Gaignières1
- Jeremiah Styles1
- Jeremy C. Jackson1
- Jeronimus Maelens1
- Jerónimos Monastery8
- Jezzar Pasha3
- Jivanji Jamshedji Modi1
- Jo. Otho1
- Joachim Guerrinus de Montefegatesio4
- Joachim Windhag1
- Joannes Aloysius Brochman1
- Joannes Angelus de Crema1
- Joannes Salzperg1
- Johan C. Jackson1
- Johan Meerman3
- Johane Bowntyene1
- Johann David Baier1
- Johann Egolph1
- Johann Heinrich van Ess20