Former Owner
- John Paget1
- John Payne Collier1
- John Roland Abbey1
- John Ruskin1
- John Shelton Lawrence1
- John Sotheby1
- John Thomas Beer1
- John Towneley1
- John Ward, 1st Earl of Dudley1
- Joost Ritman1
- Jorge de Ataíde1
- Joseph Anton Koch1
- Joseph Ernst Koch-Sternfeld1
- Joseph Franz Gross1
- Joseph Halle Schaffner1
- Joseph Neeld1
- Joseph Pope1
- Joseph Pulilo1
- José Fernando Ramírez3
- Juan Antonio de la Reguera1