Marsh
The taxon authority Marsh may refer to:
- Alan C. Marsh, entomologist
- Charles Dwight Marsh (1855–1932; March), U.S. botanist
- Gordon A. Marsh, entomologist
- Janet E. Marsh (J.E.Marsh), Canadian lichenologist
- Jessica R. Marsh, Australian arachnologist
- Leigh Marsh, marine ecologist and marine biologist
- Loisette Matilda Marsh (1928–2021), Australian marine biologist
- Millard Caleb Marsh (fl. ca. 1900), U.S. ichthyologist
- Othniel Charles Marsh (1831–1899), U.S. zoologist and palaeontologist
- Paul M. Marsh (fl. 2016), entomologist
- Robert J. Marsh, herpetologist