G
- Joseph Gaertner
- François Gagnepain
- Ernest Edward Galpin
- Charles Gaudichaud-Beaupré
- Howard Scott Gentry
- John Gerard
- Conrad von Gesner
- Luca Ghini
- Ken Gillanders
- Charles Henry Gimingham
- Johann Friedrich Gmelin
- Johann Georg Gmelin
- Samuel Gottlieb Gmelin
- Hossein Gol-e-Golab
- George Gordon
- Asa Gray
- Nehemiah Grew
- William Griffith
- Jan Frederik Gronovius
- Wilhelm Gueinzius
- Hugo Gunckel Lüer
- Johann Ernst Gunnerus
- Francis Guthrie
- George Washington Carver
Read more about this topic: List Of Botanists