Lewis
The taxon authority Lewis may refer to:
- Beverley Ann Lewis (B.A.Lewis, born 1966), British botanist
- David James Lewis (1909–1986), British entomologist
- David P. Lewis (D.P.Lewis, born 1946), mycologist
- Digby S.C. Lewis, South African ichthyologist
- Edwin Lewis, US nematologist
- Frank Harlan Lewis, (F.H.Lewis, 1919–2008) botanist
- Franklin Beach Lewis (1923–1997), U.S. entomologist
- George Lewis (1839–1926), entomologist specialized in Coleoptera
- Gwendoline Joyce Lewis (G.J.Lewis, 1909–1967), botanist
- Gwilym Peter Lewis (G.P.Lewis, born 1952), botanist
- H.L. Lewis - UK, Entomologist
- Harold "Hal" Lewis (1927–1998), American malacologist
- Ivey Foreman Lewis (1882-1964; I.F.Lewis), American botanist
- Jake H. Lewis - entomologist
- John Anthony Lewis (J.A.Lewis), phycologist
- John Lewis (J.Lewis), botanist
- Jon A. Lewis, entomologist
- John G. E. Lewis, myriapodologist
- Julian J. Lewis, carcinologist
- Katelyn Louise Lewis (1970–), U.S. paleoentomologist
- Louise A. Lewis (born 1963, L.A.Lewis), phycologist
- Margaret E. Lewis, palaeontologist
- Margaret Ensign Lewis (1919–2017), botanist
- Maureen H. Lewis, carcinologist
- Meriwether Lewis (1774–1809; Lewis), botanist
- Mirtha Noemí Lewis, zoologist
- Owen T. Lewis, entomologist
- Paul O. Lewis, phycologist
- Peter D. Lewis, Chilean entomologist
- R.H. Lewis (fl. 1834–1843), entomologist
- Robert Earl Lewis (1929–2017), U.S. entomologist
- Standley Eugene Lewis (1940–), U.S. paleoentomologist
- Timothy Richards Lewis (1841–1886, T.R.Lewis), British parasitologist
- Todd R. Lewis, arachnologist
- Walter Hepworth Lewis (1930–2020, W.H.Lewis), Canadian botanist