Former Owner
- Andreas Weiss1
- André de Rineck1
- Angela Burdett-Coutts, 1st Baroness Burdett-Coutts1
- Angelo Fasolo1
- Angelo Nicolini1
- Ann Moneylon1
- Anna Cavanaugh Tobin Anderson1
- Anne Baker Lewis43
- Anne Jesson1
- Anne of Brittany2
- Anthony Askew4
- Anthony Bustard1
- Antiquarian Books of Boston1
- Antoine Joseph Rérolle1
- Antoine Lagnier1
- Antoine de Buz1
- Antoine de Court1
- Antoine-Augustin Renouard1
- Antoni Jerzy Apponyi1
- Antonio Assemani1