Walker
The taxon authority Walker may refer to:
- Alan Cyril Walker (1938–2017), British primatologist and palaeontologist
- Alfred Osten Walker (1832–1925), British marine-biologist and malacologist
- Alick Donald Walker (1926–2004), British paleontologist
- Annette K. Walker, (born 1945), entomologist
- Bryant Walker (1856–1936), U.S. malacologist
- Charles Frederic Walker (1904–1979), U.S. herpetologist
- Christopher Walker (born 1944, C.Walker), British botanist and mycologist
- Christopher S. Walker, anthropologist
- Colin Charles Walker (born 1952, C.C.Walker), botanist
- Cyril Alexander Walker (1939–2009), British palaeontologist
- Diana I. Walker, marine biologist, phycologist
- Edmund Murton Walker (1877–1969), Canadian entomologist
- F. Joy Walker (F.J. Walker), lichenologist
- Francis Walker (1809–1874), English entomologist
- George Walker (1737?–1792, G.Walker), British naturalist
- George Arnott Walker Arnott (1799–1868, Arn.), Scottish botanist
- James John Walker (1851–1939), English entomologist
- James Martin Walker (fl. 1965), U.S. herpetologist
- Jane Brotherton Walker (1925–2009), Kenyan-born British parasitologist
- Jay B. Walker (fl. 2017, J.B.Walker), U.S. botanist
- John Walker (1731–1803, Walker), Scottish naturalist, botanist
- John Charles Walker (1893–1994, J.C.Walker), U.S. mycologist
- Max Walker de Laubenfels (1894–1960), U.S. spongiologist
- Myrl Vincent Walker (1903–1985), U.S. paleontologist
- Paddy A. Walker, ichthyologist
- Rachel H. Walker (fl. 2009, R.H.Walker), phycologist
- Thomas J. Walker (fl. 1962), entomologist
- Timothy Walker (fl. 2003, T.Walker), botanist
- Trevor George Walker (1927–2006, T.G.Walker), British botanist
- Warren Franklin Walker (1918–2013), U.S. herpetologist