Former Owner
- Grenville Kane2
- Grigorij Sergeevič Stroganov1
- Groenendael Priory1
- Grolier Club1
- Grosvenor, Richard1
- Gudrun Wandel69
- Guglielmo Libri Carucci dalla Sommaja17
- Guilberto Broulin1
- Guilelmus Laing1
- Guillemette Bezard1
- Gundulf1
- Gusztáv Emich1
- Gāḍagila, Janārdanapanta Bhatu4
- H. Bayle1
- H. Charles Barnston1
- H. P. Kraus (firm)28
- Habert du Berry d'Artois family1
- Hada Alftra Haq Salem N. Salman1
- Hadi Kashif al-Ghita1
- Hagop Kevorkian1