Encyclopedias, Almanacs, Transcripts, and Maps
- Harcourt, Sir William George Granville Venables Vernon
- Hardangerfjord
- hardboard
- Hardecanute
- Harden, Maximilian
- Harden, Sir Arthur
- Hardenberg, Friedrich von
- Hardenberg, Karl August, Fürst von
- hardening of the arteries
- hardhack
- Hardicanute
- Hardin, John Wesley
- Harding, Chester
- Harding, Stephen
- Hardouin, Jules
- harebell
- Harer
- Hareth
- Harfleur
- Hargeisa