Former Owner
- Alexis Hübner1
- Alfonso Cassuto1
- Alfred Chester Beatty2
- Alfred Cock1
- Alfred Henry Huth8
- Alfred Morrison1
- Alfredo Chavero1
- Ali Asghar Antiquatchi1
- Alice Millard2
- Alison Johnstone1
- Allen Johnson1
- Alphonse Pinart3
- Ambroise Firmin Didot4
- American Type Founders Company. Typographic Library and Museum1
- Amīr Bahādur Jank ʻAẓim Allāh Khān1
- Andrea della Valle1
- Andreas Weiss1
- Andrew Gifford1
- André Rooryck1
- Anne de Graville1