The taxon authority Cook may refer to:

• Albert John Cook (1842–1916), naturalist
• Carl Cook, entomologist
• Christopher David Kentish Cook (born 1933; C.D.K.Cook), botanist
• David R. Cook (1922–), acarologist
• Harold James Cook (1887–1962), paleontologist
• Jerry L. Cook, entomologist
• John H. Cook, entomologist
• Joyce Cook (born 1940), entomologist
• Lewis Anderson Cook, paleontologist
• Lorraine D. Cook, entomologist
• Lyn G. Cook (L.G.Cook), entomologist and botanist
• Orator Fuller Cook (1867–1949, O.F.Cook), botanist and entomologist
• Patricia L. Cook, bryozoologist
• Peter A. Cook, ichthyologist and carcinologist
• Rachel E. Cook (fl. 2004; R.E.Cook), botanist
• Stephen P. Cook, entomologist
• Steve de C. Cook, spongiologist
• Thomas Wrentmore Cook, myrmecologist
• Todd D. Cook, paleontologist