Former Owner
- House of Strozzi1
- Howard Lehman Goodhart1
- Howard Lesnick1
- Hôtel Drouot1
- J. Martini1
- J. Thomson1
- J.J. Middleton1
- Jacob Henry Burn1
- Jacob Riegel1
- Jacques Rosenthal1
- Jay Gould1
- Jean-Baptiste Huzard1
- Jesuit College of San Bartolomeo1
- Johan Gröf1
- Johannes Baptista Siccus1
- Johannes Betrus Ravenoldus1
- John C. Jackson1
- John Camp Williams1
- John D. Stanitz1
- John Henry Ellis1