Gaertner
The taxon authority Gaertner / Gärtner may refer to:
- Carl Friedrich von Gaertner (1772–1850, C.F.Gaertn.), German botanist
- Georg Gärtner (born 1946, G.Gärtner), Austrian botanist
- Gottfried Gaertner (1754–1825, G.Gaertn.), German botanist, mycologist, and lichenologist
- Joseph Gaertner (1732–1791, Gaertn.), German botanist