Encyclopedias, Almanacs, Transcripts, and Maps
- Hackett, Buddy
- Hackman, Eugene Alden ("Gene")
- Hadramawt
- Haeckel, Ernst Heinrich (1834–1919)
- Hagen, Uta Thyra
- Hagen, Walter C.
- Hägerström, Axel (1868–1939)
- Haggard, Merle Ronald
- Haggiag Family
- Hagler, Marvin Nathaniel
- Haifa University
- Haigazian College
- Haiti, Caco Revolts
- Haiti, Constitutions
- Hajji Baba of Ispahan
- Hakim Family
- Hakluyt, Richard ca. 1552–1616 English Geographer
- Halaby, Najeeb Elias
- Halang Doan
- Halas, George Stanley