H
- Olaf Hagerup
- Karl Theodor Hartweg
- William Henry Harvey
- Adrian Hardy Haworth
- John Stevens Henslow
- Augustine Henry
- LeRoy Kershaw Henry
- Vernon Heywood
- Johann Centurius Hoffmannsegg
- Joseph Dalton Hooker
- William Jackson Hooker
- Albert Howard
- Armando Theodoro Hunziker
- John Hutchinson
Read more about this topic: List Of Botanists