Former Owner
- Jonathan Peckover1
- Joost Ritman6
- Josceline Bagot1
- Joseph Barrois18
- Joseph E. Widener6
- Joseph François René de Kergariou1
- Joseph Haslewood2
- Joseph Jekyll1
- Joseph L. Lilly1
- Joseph Marie Sormani1
- Joseph May Spetzler1
- Joseph Whitney1
- Joseph ben Aryeh1
- Josephine Widener Wichfield2
- Josiah H. Benton1
- Juan de Aillon1
- Juan de Torquemada1
- Judith Lady Montefiore College3
- Jules Bonhomme1
- Julie de Busnel1