Encyclopedias, Almanacs, Transcripts, and Maps
- Heinrich de Vick
- Heinrich Eduard Heine
- Heinrich Focke
- Heinrich Friedrich Emil Lenz
- Heinrich Geissler
- Heinrich Hertz Produces and Detects Radio Waves in 1888
- Heinrich Otto Wieland
- Heinrich von Pfolspeundt
- Heinrich Wilhelm Matthias Olbers
- Heinz Fraenkel-Conrat
- Heinz Hopf
- Heisenberg Uncertainty Principle
- Heisenberg Uncertainty Principle
- Heisuke Hironaka
- Hekalot
- Helen Merrill
- Helen Thayer
- Helicopters: The Long Journey
- Heliocentric Astrologers of North America
- Heliocentric Theory