Former Owner
- Dawson Turner1
- Dawson W. Turner1
- De Levis1
- De Raude1
- Despaigne1
- Diego Alphonso1
- Diogo de Mello family1
- Dionysiĭ Vasilevich1
- Dmitry Buturlin1
- Domenico Grimani1
- Domenico Toschi1
- Dominican Nunnery Holy Cross1
- Donald S. Klopfer1
- Donato Acciaioli1
- Donaueschingen court library1
- Draycot House1
- Drew Theological School1
- Duke C. Visconti di Modrone1
- Duncan Beresford-Jones1
- Duncan Campbell1