C
- George Caley
- Rudolf Jakob Camerarius
- Frederick Campion Steward
- A. P. de Candolle
- Alphonse Pyrame de Candolle
- Elie-Abel Carrière
- George Washington Carver
- William Casson
- Antonio José Cavanilles
- Andrea Cesalpino
- Adelbert von Chamisso
- Pierre Gaspard Chaumette
- Henry Chesterton
- Carl Christensen
- Arthur Roy Clapham
- Peter Collinson
- Philibert Commerçon
- Joseph Whipple Congdon
- Valerius Cordus
- Arthur Disbrowe Cotton
- Arthur Cronquist
- José Cuatrecasas
- Nicholas Culpeper
- Francesco Cupani
- Charles Curtis
- William Curtis
Read more about this topic: List Of Botanists