List of Biologists - R

R

• Gustav Radde (1831–1903), German naturalist
• Thomas Stamford Raffles (1781–1826), British founder/first president of the Zoological Society of London
• Constantine Samuel Rafinesque (1783–1840), French naturalist who described many North American species
• Émile Louis Ragonot (1843–1895), French entomologist
• Santiago Ramón y Cajal (1852–1934), Spanish histologist and Nobel laureate. Considered the father of neuroscience.
• Edward Pierson Ramsay (1842–1916), Australian ornithologist
• Austin L. Rand (1905–1982), Canadian zoologist
• Suresh Rattan (born 1955), Indian biogerontologist
• John Ray (1627–1705), English naturalist
• Francesco Redi (1626–1697), Italian physician known for his experiment in 1668 which is regarded as a one of the first steps in refuting abiogenesis
• Lovell Augustus Reeve (1814–1865), English conchologist
• Heinrich Gustav Reichenbach (1823–1889), German orchidologist (abbr. in botany: Rchb. f.)
• Ludwig Reichenbach (1793–1879), German botanist and ornithologist (abbr. in botany: Rchb.)
• Anton Reichenow (1847–1941), German ornithologist
• Caspar Georg Carl Reinwardt (1773–1854), Dutch botanist
• Bernhard Rensch (1900–1990), German biologist
• Ralf Reski (born 1958), German botanist and biotechnologist, developed Physcomitrella as model organism
• Achille Richard (1794–1852), French botanist (abbr. in botany: A. Rich)
• Jean Michel Claude Richard (1787–1868), noted French botanist and plant collector (abbr. in botany: J.M.C.Rich.)
• Louis Claude Richard (1754–1821), French botanist (abbr. in botany: Rich.)
• Olivier Jules Richard (1836–1896), French lichenologist (abbr. in botany: O.J.Rich.)
• John Richardson (1787–1865), Scottish naturalist (abbr. in botany: Richardson)
• Charles Richet (1850–1935), French physiologist, winner of the 1913 Nobel Prize for Physiology or Medicine for his discovery of anaphylaxis
• Charles Wallace Richmond (1868–1932), American ornithologist
• Robert Ridgway (1850–1929), American ornithologist
• Henry Nicholas Ridley (1855–1956), British botanist (abbr. in botany: Ridl.)
• Austin Roberts (1883–1948), South African zoologist
• Harold E. Robinson (born 1932), American botanist and entomologist
• Maurício Rocha e Silva (1910–1983), Brazilian physician and pharmacologist, codiscoverer of bradykinin
• Martin Rodbell (1925–1998), biologist
• Peter Friedrich Röding (1767–1846), German malacologist
• George Romanes (1848–1894), Canadian naturalist, founded the discipline of comparative psychology
• Alfred Romer (1894–1973), specialist in vertebrate paleontology
• Robert Rosen (1934–1998), theoretical biologist
• Joel Rosenbaum, cell biologist at Yale University
• Harald Rosenthal (born 1937), German hydrobiologist known for his work in fish farming and ecology
• Miriam Louisa Rothschild (1908–2005), British entomologist
• Walter Rothschild, 2nd Baron Rothschild (1868–1937), British zoologist
• William Roxburgh (1759–1815), Scottish botanist
• Adriaan van Royen (1704–1779), Dutch botanist (abbr. in botany: Royen)
• Karl Rudolphi (1771–1832), German physiologist
• Eduard Rüppell (1794–1884), German naturalist