Former Owner
- Jacob Suter1
- James F. Drake1
- James Halliwell-Phillipps1
- Jayarāmācārya1
- Jean Theodore Royer1
- Jean de Carvalho Martins Ferrão de Castelo Branco1
- Jeanne Govro1
- Johan Laborya de Mossach1
- Johan Meerman1
- Johann Heinrich van Ess1
- Johannes Baptista Siccus1
- John Bolton1
- John D. Stanitz1
- John Harvey Treat1
- John James Lewis1
- John Thomas Beer1
- Joseph Anton Koch1
- Jāgeśvara1
- Jān Sipār Khān ibn Rustamdilkhān1
- Karbalāʼī Muḥammad Ḥusayn Qāsimʹābādī1