Project / Collection
- Harley Collection7,154
- Harley Science Project985
- Harrison Collection16
- Harrisons and Sons Collection1
- Hastings Albums547
- Hastings Collection2
- Haynes Publishing Company Archive429
- Hebrew Manuscripts Digitisation Project2,788
- Henke Collection272
- Heys Collection1
- Hieroglyphic Shui Manuscripts in China662
- Hirsch Collection78
- Historic Ephemera and Manuscripts from Nepal1,618
- Historical Archive of the Diocese of Texcoco, Mexico1,778
- Historical Archive of the Institute of Charity "Hermandad De Dolores", Santiago De Chile105
- Historical Archive of the San Marcos National University386
- Historical Collections of Manuscripts Located at al-Jazzar Mosque Library in Acre55
- History of Bolama51
- History of Indian Cinema through Early Urdu Film Magazines9
- Hodgson Collection159