Former Owner
- James West1
- Jaʻfar ʻAlī1
- Jean Davray1
- Jean E. Austin1
- Jean II de Croÿ1
- Jean Joseph Sosthène de LaRoche Lacarelle1
- Jean Leclerc1
- Jean de Carvalho Martins Ferrão de Castelo Branco1
- Jivanji Jamshedji Modi1
- Joannes Hainricus Ebron zu Wildenberg1
- Joaquín García Icazbalceta1
- Johann Heinrich van Ess6
- John A. Savage Jr.1
- John Bigham, 1st Viscount Mersey1
- John Boyd Thacher I2
- John Boykett Jarman2
- John Caryll1
- John E. Burton1
- John Egerton, 2nd Earl of Bridgewater1
- John Egerton, 3rd Earl of Bridgewater1