The taxon authority Kuhn or Kühn may refer to:
- Alfred Kühn (1885–1968), German zoologist
- Friedrich Adalbert Maximilian Kuhn (1842–1894, Kuhn), German botanist and mycologist (often published as Maximilian Friedrich Adalbert Kuhn)
- Janet Kuhn (J.Kuhn), botanist
- Julius Gotthelf Kühn (1825–1910, J.G.Kühn), German agronomist and plant pathologist.
- Oskar Kuhn (1908–1990), German paleontologist
- Rolf Kühn (fl. 2019; Rolf Kühn), botanist