Former Owner
- Bristol Baptist College1
- Budapest University of Jewish Studies1
- Burg Kreuzenstein1
- Burndy Library1
- Bālambhaṭṭamuni1
- Bāpaṭa Kṛṣṇabhaṭa1
- Būtū ʻAbd al-Bāqī1
- Camillo Riccio1
- Carl Alphons Geigy-Hagenbach1
- Carleton Rubira Richmond1
- Carlo Archinto, 2nd Marquess of Parona, 3rd Count of Trainate1
- Carlo Longland1
- Carlos José Gutiérrez de los Ríos y Rohan Chabot Fernán-Núñez1
- Cartwright, Janet1
- Caspar René Gregory1
- Cecil Deedes1
- Charles Augustus Stoddard1
- Charles Edwin Puckett1
- Charles Fairfax Murray1
- Charles Golding1