Lloyd
The taxon authority Lloyd may refer to:
- Brian V. Ford-Lloyd (fl. 1975; Ford-Lloyd), botanist
- Curtis Gates Lloyd (1859–1926; Lloyd), U.S. mycologist
- David Graham Lloyd (1937–2006; D.G.Lloyd), New Zealander botanist and evolutionary biologist
- Francis Ernest Lloyd (1868–1947; F.E.Lloyd), British-U.S. botanist
- James Lloyd (1810–1896; J.Lloyd), British-born French botanist
- Janine Lloyd (fl. 1996), Australian nematologist
- Lowell Clyde Lloyd, U.S. zoologist
- Ray Lloyd (fl. 2004), Australian herpetologist
- Richard Ernest Lloyd (1875-1935), ichthyologist
- Robert Michael Lloyd (1938–1994; R.M.Lloyd), U.S. botanist